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California wolves are on the comeback and eating cattle. Ranchers say, 'Enough!'

News Feed
Monday, April 21, 2025

SISKIYOU COUNTY, Calif. — In far Northern California, beneath a towering mountain ridge still covered in April snow, one of the state’s last cowboys stood in the tall green grass of a pasture he tends describing what he sees as the one blight on this otherwise perfect landscape: wolves.“I hate ‘em,” said Joel Torres, 25, his easy smile fading as he explained what the apex predators do to the cattle in his care at Prather Ranch, an organic farm in Siskiyou County dedicated to raising beef in a natural, stress-free environment. “They’ve just been tearing into our baby calves, mostly our yearlings.”Unlike predators that go for the throat and kill prey relatively quickly, wolves often attack from behind and rip victims apart while they’re trying to flee. Once they bring a cow to the ground, the pack will “kind of pick around a little bit, eat the good stuff” — particularly the rectum and udders — “and then just leave them and go on to the next one,” Torres said.That’s how he has found dozens of mortally injured young cows, trembling and in shock, after wolf attacks. “It’s crazy, the endurance of these animals. They’ll just take it,” Torres said. There’s no saving them. Their intestines often spill out through their hindquarters, and Torres shoots the cows to put them out of their misery.He’d like to shoot the wolves, too, at least a few, to teach the pack that there are “consequences to coming around here and tearing into our cattle.” But the predators remain on the state’s endangered species list, and aggressive measures to control their behavior are strictly forbidden.Instead, all Torres can do is grit his teeth and deal with the grisly aftermath. VIDEO | 00:05 A wolf howling in Northern California A February video shows a wolf howling in Northern California. (Courtesy of Patrick Griffin) Torres and many other ranchers in California live where two very lofty and environmentally satisfying ideas collide: all natural, free-range ranching and the government-assisted return of a predator our ancestors hunted to near extinction.No matter how hard officials try to direct the wolves toward their natural prey, mostly deer and elk, they seem to find the bigger, slower, domesticated cows wandering through well-kept, wide-open fields a lot more appealing.Things have gotten so bad so quickly — wolves have been back in California for only a bit more than a decade — that officials in Modoc and Sierra counties have declared emergencies. Leaders in Siskiyou and Lassen counties are calling on the state to do something about the devastating economic toll the wolves are taking on ranchers. And while wolf attacks on people are almost unheard of, many in those counties are worried about potential risks to children and pets as the wild predators wander ever closer to houses and show signs of becoming accustomed to humans.In response, the California Department of Fish and Wildlife has approved what it calls increased “hazing,” which includes firing guns toward the sky, driving trucks and ATVs toward wolves to shoo them away and harassing them with noise from drones — but nothing that might injure the wolves.Ranchers are skeptical. Other hazing methods approved by the department in recent years, such as electric fences with red flags attached that flutter in the wind, have done little to keep the wolves from their herds.“The wolves just jump over those fences,” Torres said. “They do no good.” Wolves are preying on cows at Jim and Mary Rickert’s Siskiyou County ranch. They want more options to deal with the predators than banging pots and hanging flags. Mary Rickert, who owns the Prather Ranch with her husband, Jim, said the obvious solution is to let ranchers shoot problem wolves. “We’d just pick off a few of the bad actors, so the others would go, whoa, and back off,” she said.A century ago, wolves in the United States were almost wiped out by ranchers who regarded them as lethal enemies. The last wolf legally shot in California was in 1924, and by 1930 they were gone from almost the entire country, except for a small pack in northern Minnesota.But in 1973, then-President Nixon signed the Endangered Species Act, and his administration added wolves to the list the following year. In the decades that followed, wolves began a slow recovery, mostly in the northern U.S.Then, in 2011, a wolf from Oregon known as OR7 — monitored by government biologists via an electronic collar — crossed the border into California and became the first known wild wolf to inhabit the state in almost 90 years. Like other notable transplants to the Golden State, he found pop culture stardom, becoming the heroic subject of a children’s book and a 2014 documentary.Environmental advocates and cheerleaders for biodiversity were overjoyed that the wolves — who in their best moments look a lot like big, cuddly dogs — were making such an astonishing comeback. The hope was that they’d mostly eat other wild animals. VIDEO | 00:08 Wolves feed on a cow in Northern California A video shows a wolf pack feeding on a dead cow in August. (Courtesy of Patrick Griffin) But ask any rancher living in wolf country, and they’ll tell you that’s not what happened — and recent science backs them up.In 2022-23, researchers from UC Davis analyzed more than 100 wolf scat samples collected in northeast California from the so-called Lassen pack. They found that 72% of the samples contained cattle DNA, and every wolf had at least one sample that contained cow, said Kenneth Tate, one of the researchers.What’s more, there were 13 wolves in the pack, nearly twice as many as state wildlife officials believed at the time.“These packs are not in the wilderness. They’re not up on Mt. Shasta or Lassen peak,” Tate said. “They’re establishing themselves down in the valleys, where the summer cattle graze.”And they are thriving. In just 14 years since OR7 crossed the border, seven separate packs have established themselves in the state. They’re mostly in the north, but one pack has been confirmed in the southern Sierra Nevada, 200 miles from Los Angeles.None of those packs has done as much damage to livestock as the “Whaleback” pack (named after a nearby mountain) that stalks the Prather Ranch in the remote Butte Valley. VIDEO | 00:09 A group of wolves in Northern California A January 2022 video of a group of wolves in Northern California. (Courtesy of Patrick Griffin) That’s because Prather’s lush pastures back up against a secluded mountain ridge running from nearby Mt. Shasta north to the Oregon border. That land belongs to the U.S. Forest Service, and it’s covered in mature pine trees that provide nearly perfect cover.From the top of the ridge, where the wolves are believed to make their den, there’s a commanding view of Prather Ranch to the east and of another ranch, Table Rock, to the west. At any given moment in summer, when thousands of free-ranging cattle are scattered across those pastures, the wolves can gaze down from their protected perch and take their pick.“It’s like they’re deciding between McDonald’s and Burger King,” said Patrick Griffin, the “wolf liaison” for Siskiyou County, whose job is to try to mitigate conflict between the predators and ranchers. “Wolves are beautiful animals, they’re just beautiful,” says Patrick Griffin, the wolf liaison in Siskiyou County. “But what they do? That isn’t so beautiful.” There’s a “good-sized” elk herd ranging just north of the ranches, Griffin said, and he keeps hoping that the department’s nonlethal hazing tactics will persuade the wolves to turn their attention to their natural prey. But he doesn’t think the odds are very good.“An elk is a lot more intimidating than a cow,” Griffin said. “Which would you pick?”The bigger problem, Griffin said, is that the Whaleback pack is teaching its young to hunt cows. And when they head off to claim their own territory and start their own packs, they’ll take those lessons with them.While other states, including Idaho, Montana and Wyoming, have allowed wolf hunts to resume, California still forbids ranchers from taking aggressive measures to stop the predators.In addition to the nonlethal hazing, the department encourages ranchers to hire “range riders,” essentially cowboys, to sleep in the pastures with the cows. But that costs money, and the state doesn’t help with the added expense, Griffin said.And even when people are present to harass the wolves, these ranches are so large that it’s impossible for them to be everywhere at once. One night, a “government guy” rode around Prather Ranch in his pickup with a spotlight, and the wolves still “tore into two cows that I had to put down,” Torres said.Each cow the wolves kill represents thousands of dollars in lost revenue, so in 2021 the state set up a pilot program with $3 million to reimburse ranchers. When they found a dead or dying cow with telltale signs of wolf “depredation,” ranchers could alert the state and a representative would come out to investigate. If the investigator concluded wolves were to blame, the rancher would get a check, about $5,000 on average.But that money ran out in a hurry, state records show, with the majority of it, 67%, going to ranchers whose wolves were killed by the Whaleback pack. Fladry — bright colorful flags hung from wire — are among the nonlethal methods the state recommends for warding off wolves. And while the fund covered confirmed wolf kills, it did not compensate for all of the animals — especially newborn calves that are easier to carry — that simply disappeared into the forest.Griffin, who investigates suspected wolf kills in the region for the Department of Fish and Wildlife, acknowledged that the 80 or so kills attributed to the Whaleback pack is an undercount. He cited studies from other states that estimate only about 1 in 8 wolf kills are ever confirmed.“I know we don’t find most of them,” Griffin said.And there’s no money to compensate for the damage that the mere presence of wolves does to cow herds. The cows lose a lot of weight from stress and from trying to stay away from the wolves. Tate, the UC Davis researcher, said GPS data from trackers attached to cows show some of them being chased around the pastures all night long. “Cows don’t usually run 10 miles over four hours in the middle of the night,” Tate said. “That’s just not what they do.”But wolves are persistence hunters. Weighing about 100 pounds each, they might struggle to take down a yearling cow that’s pushing 1,000 pounds. So they spook the cow and get it running, following behind at a comfortable trot until the cow is exhausted. Then they attack.“It’s fun for [the wolves]; it’s like an adrenaline rush,” said Torres. “You can tell it really excites them.”But it’s a nightmare for the herd, and not just the cows that get singled out. Researchers have found elevated levels of cortisol, a stress hormone, in herds exposed to wolves. Not only do the cows lose weight, but they abort pregnancies at increased rates, researchers found. More than 40 cows have been killed on this ranch, hunted down by wolves who scout their prey from lookouts on Goosenest Mountain. “Cattle actually react to wolves very differently, and in a much more extreme way, than they react to other predators,” Rickert said.“We have bears around the ranch, and they’ll go and swim in the water troughs, and the cattle will just watch,” she said with a laugh. And the occasional mountain lion will stop by, maybe kill a calf, and then move on.But the wolves set up shop and torment the cattle.The UC Davis researchers estimated that, over the course of one summer, each wolf in their study cost ranchers between $70,000 and $163,000. All of which has left Griffin, the Siskiyou County wolf liaison, with deeply mixed feelings about the return of the predators.“There are a lot of people in California who love wolves,” he said, “but not very many of them live close to wolves.”Griffin said he enjoys tracking the predators, climbing ridges to see how they use the landscape to their advantage, setting up cameras in the mountains to catch breathtaking images of them playing with their young or howling in the snow on a moonlit night.But on a recent afternoon, walking through a pasture in the shadow of Mt. Shasta with puffy white clouds drifting across a cobalt blue sky, Griffin recalled one of his worst days on the job.He’d seen buzzards on the hillside just ahead, where the terrain turns steeply upward and the forest begins. When he arrived to see what the birds were eating, he found a dead cow, its rectum and udders torn away — classic wolf kill. Mixed with all the blood, he noticed a substantial amount of mucus. His heart sank as he followed the trail of bodily fluids about 60 yards downhill to the half-eaten remains of a newborn calf.He figured the wolves had waited until the cow was in labor, straining so hard with the contractions that she couldn’t run, at least not very far.“Wolves are beautiful animals, they’re just beautiful,” Griffin said, gazing up at the ridge where the predators parade in front of his cameras, sometimes with fresh kill in their mouths. “But what they do? That isn’t so beautiful.”

No matter how hard wildlife officials try to direct the wolves toward their natural prey, mostly deer and elk, they seem to find the bigger, slower, domesticated cows wandering through open fields a lot more appealing.

SISKIYOU COUNTY, Calif. — In far Northern California, beneath a towering mountain ridge still covered in April snow, one of the state’s last cowboys stood in the tall green grass of a pasture he tends describing what he sees as the one blight on this otherwise perfect landscape: wolves.

“I hate ‘em,” said Joel Torres, 25, his easy smile fading as he explained what the apex predators do to the cattle in his care at Prather Ranch, an organic farm in Siskiyou County dedicated to raising beef in a natural, stress-free environment. “They’ve just been tearing into our baby calves, mostly our yearlings.”

Unlike predators that go for the throat and kill prey relatively quickly, wolves often attack from behind and rip victims apart while they’re trying to flee. Once they bring a cow to the ground, the pack will “kind of pick around a little bit, eat the good stuff” — particularly the rectum and udders — “and then just leave them and go on to the next one,” Torres said.

That’s how he has found dozens of mortally injured young cows, trembling and in shock, after wolf attacks. “It’s crazy, the endurance of these animals. They’ll just take it,” Torres said.

There’s no saving them. Their intestines often spill out through their hindquarters, and Torres shoots the cows to put them out of their misery.

He’d like to shoot the wolves, too, at least a few, to teach the pack that there are “consequences to coming around here and tearing into our cattle.” But the predators remain on the state’s endangered species list, and aggressive measures to control their behavior are strictly forbidden.

Instead, all Torres can do is grit his teeth and deal with the grisly aftermath.

VIDEO | 00:05

A wolf howling in Northern California

A February video shows a wolf howling in Northern California. (Courtesy of Patrick Griffin)

Torres and many other ranchers in California live where two very lofty and environmentally satisfying ideas collide: all natural, free-range ranching and the government-assisted return of a predator our ancestors hunted to near extinction.

No matter how hard officials try to direct the wolves toward their natural prey, mostly deer and elk, they seem to find the bigger, slower, domesticated cows wandering through well-kept, wide-open fields a lot more appealing.

Things have gotten so bad so quickly — wolves have been back in California for only a bit more than a decade — that officials in Modoc and Sierra counties have declared emergencies. Leaders in Siskiyou and Lassen counties are calling on the state to do something about the devastating economic toll the wolves are taking on ranchers.

And while wolf attacks on people are almost unheard of, many in those counties are worried about potential risks to children and pets as the wild predators wander ever closer to houses and show signs of becoming accustomed to humans.

In response, the California Department of Fish and Wildlife has approved what it calls increased “hazing,” which includes firing guns toward the sky, driving trucks and ATVs toward wolves to shoo them away and harassing them with noise from drones — but nothing that might injure the wolves.

Ranchers are skeptical. Other hazing methods approved by the department in recent years, such as electric fences with red flags attached that flutter in the wind, have done little to keep the wolves from their herds.

“The wolves just jump over those fences,” Torres said. “They do no good.”

Ranch owners Jim and Mary Rickert stand outside the fence of their cattle corral.

Wolves are preying on cows at Jim and Mary Rickert’s Siskiyou County ranch. They want more options to deal with the predators than banging pots and hanging flags.

Mary Rickert, who owns the Prather Ranch with her husband, Jim, said the obvious solution is to let ranchers shoot problem wolves. “We’d just pick off a few of the bad actors, so the others would go, whoa, and back off,” she said.

A century ago, wolves in the United States were almost wiped out by ranchers who regarded them as lethal enemies. The last wolf legally shot in California was in 1924, and by 1930 they were gone from almost the entire country, except for a small pack in northern Minnesota.

But in 1973, then-President Nixon signed the Endangered Species Act, and his administration added wolves to the list the following year. In the decades that followed, wolves began a slow recovery, mostly in the northern U.S.

Then, in 2011, a wolf from Oregon known as OR7 — monitored by government biologists via an electronic collar — crossed the border into California and became the first known wild wolf to inhabit the state in almost 90 years. Like other notable transplants to the Golden State, he found pop culture stardom, becoming the heroic subject of a children’s book and a 2014 documentary.

Environmental advocates and cheerleaders for biodiversity were overjoyed that the wolves — who in their best moments look a lot like big, cuddly dogs — were making such an astonishing comeback. The hope was that they’d mostly eat other wild animals.

VIDEO | 00:08

Wolves feed on a cow in Northern California

A video shows a wolf pack feeding on a dead cow in August. (Courtesy of Patrick Griffin)

But ask any rancher living in wolf country, and they’ll tell you that’s not what happened — and recent science backs them up.

In 2022-23, researchers from UC Davis analyzed more than 100 wolf scat samples collected in northeast California from the so-called Lassen pack. They found that 72% of the samples contained cattle DNA, and every wolf had at least one sample that contained cow, said Kenneth Tate, one of the researchers.

What’s more, there were 13 wolves in the pack, nearly twice as many as state wildlife officials believed at the time.

“These packs are not in the wilderness. They’re not up on Mt. Shasta or Lassen peak,” Tate said. “They’re establishing themselves down in the valleys, where the summer cattle graze.”

And they are thriving. In just 14 years since OR7 crossed the border, seven separate packs have established themselves in the state. They’re mostly in the north, but one pack has been confirmed in the southern Sierra Nevada, 200 miles from Los Angeles.

None of those packs has done as much damage to livestock as the “Whaleback” pack (named after a nearby mountain) that stalks the Prather Ranch in the remote Butte Valley.

VIDEO | 00:09

A group of wolves in Northern California

A January 2022 video of a group of wolves in Northern California. (Courtesy of Patrick Griffin)

That’s because Prather’s lush pastures back up against a secluded mountain ridge running from nearby Mt. Shasta north to the Oregon border. That land belongs to the U.S. Forest Service, and it’s covered in mature pine trees that provide nearly perfect cover.

From the top of the ridge, where the wolves are believed to make their den, there’s a commanding view of Prather Ranch to the east and of another ranch, Table Rock, to the west. At any given moment in summer, when thousands of free-ranging cattle are scattered across those pastures, the wolves can gaze down from their protected perch and take their pick.

“It’s like they’re deciding between McDonald’s and Burger King,” said Patrick Griffin, the “wolf liaison” for Siskiyou County, whose job is to try to mitigate conflict between the predators and ranchers.

Patrick Griffin poses in a wooded meadow in Siskiyou County.

“Wolves are beautiful animals, they’re just beautiful,” says Patrick Griffin, the wolf liaison in Siskiyou County. “But what they do? That isn’t so beautiful.”

There’s a “good-sized” elk herd ranging just north of the ranches, Griffin said, and he keeps hoping that the department’s nonlethal hazing tactics will persuade the wolves to turn their attention to their natural prey. But he doesn’t think the odds are very good.

“An elk is a lot more intimidating than a cow,” Griffin said. “Which would you pick?”

The bigger problem, Griffin said, is that the Whaleback pack is teaching its young to hunt cows. And when they head off to claim their own territory and start their own packs, they’ll take those lessons with them.

While other states, including Idaho, Montana and Wyoming, have allowed wolf hunts to resume, California still forbids ranchers from taking aggressive measures to stop the predators.

In addition to the nonlethal hazing, the department encourages ranchers to hire “range riders,” essentially cowboys, to sleep in the pastures with the cows. But that costs money, and the state doesn’t help with the added expense, Griffin said.

And even when people are present to harass the wolves, these ranches are so large that it’s impossible for them to be everywhere at once. One night, a “government guy” rode around Prather Ranch in his pickup with a spotlight, and the wolves still “tore into two cows that I had to put down,” Torres said.

Each cow the wolves kill represents thousands of dollars in lost revenue, so in 2021 the state set up a pilot program with $3 million to reimburse ranchers.

When they found a dead or dying cow with telltale signs of wolf “depredation,” ranchers could alert the state and a representative would come out to investigate. If the investigator concluded wolves were to blame, the rancher would get a check, about $5,000 on average.

But that money ran out in a hurry, state records show, with the majority of it, 67%, going to ranchers whose wolves were killed by the Whaleback pack.

Colorful flags meant to deter wolves flutter on a wire next to grazing land.

Fladry — bright colorful flags hung from wire — are among the nonlethal methods the state recommends for warding off wolves.

And while the fund covered confirmed wolf kills, it did not compensate for all of the animals — especially newborn calves that are easier to carry — that simply disappeared into the forest.

Griffin, who investigates suspected wolf kills in the region for the Department of Fish and Wildlife, acknowledged that the 80 or so kills attributed to the Whaleback pack is an undercount. He cited studies from other states that estimate only about 1 in 8 wolf kills are ever confirmed.

“I know we don’t find most of them,” Griffin said.

And there’s no money to compensate for the damage that the mere presence of wolves does to cow herds. The cows lose a lot of weight from stress and from trying to stay away from the wolves. Tate, the UC Davis researcher, said GPS data from trackers attached to cows show some of them being chased around the pastures all night long.

“Cows don’t usually run 10 miles over four hours in the middle of the night,” Tate said. “That’s just not what they do.”

But wolves are persistence hunters. Weighing about 100 pounds each, they might struggle to take down a yearling cow that’s pushing 1,000 pounds. So they spook the cow and get it running, following behind at a comfortable trot until the cow is exhausted. Then they attack.

“It’s fun for [the wolves]; it’s like an adrenaline rush,” said Torres. “You can tell it really excites them.”

But it’s a nightmare for the herd, and not just the cows that get singled out. Researchers have found elevated levels of cortisol, a stress hormone, in herds exposed to wolves. Not only do the cows lose weight, but they abort pregnancies at increased rates, researchers found.

A snowcapped mountain rises above a meadow filled with grazing cattle.

More than 40 cows have been killed on this ranch, hunted down by wolves who scout their prey from lookouts on Goosenest Mountain.

“Cattle actually react to wolves very differently, and in a much more extreme way, than they react to other predators,” Rickert said.

“We have bears around the ranch, and they’ll go and swim in the water troughs, and the cattle will just watch,” she said with a laugh. And the occasional mountain lion will stop by, maybe kill a calf, and then move on.

But the wolves set up shop and torment the cattle.

The UC Davis researchers estimated that, over the course of one summer, each wolf in their study cost ranchers between $70,000 and $163,000.

All of which has left Griffin, the Siskiyou County wolf liaison, with deeply mixed feelings about the return of the predators.

“There are a lot of people in California who love wolves,” he said, “but not very many of them live close to wolves.”

Griffin said he enjoys tracking the predators, climbing ridges to see how they use the landscape to their advantage, setting up cameras in the mountains to catch breathtaking images of them playing with their young or howling in the snow on a moonlit night.

But on a recent afternoon, walking through a pasture in the shadow of Mt. Shasta with puffy white clouds drifting across a cobalt blue sky, Griffin recalled one of his worst days on the job.

He’d seen buzzards on the hillside just ahead, where the terrain turns steeply upward and the forest begins. When he arrived to see what the birds were eating, he found a dead cow, its rectum and udders torn away — classic wolf kill.

Mixed with all the blood, he noticed a substantial amount of mucus. His heart sank as he followed the trail of bodily fluids about 60 yards downhill to the half-eaten remains of a newborn calf.

He figured the wolves had waited until the cow was in labor, straining so hard with the contractions that she couldn’t run, at least not very far.

“Wolves are beautiful animals, they’re just beautiful,” Griffin said, gazing up at the ridge where the predators parade in front of his cameras, sometimes with fresh kill in their mouths. “But what they do? That isn’t so beautiful.”

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Contributor: 'Save the whales' worked for decades, but now gray whales are starving

The once-booming population that passed California twice a year has cratered because of retreating sea ice. A new kind of intervention is needed.

Recently, while sailing with friends on San Francisco Bay, I enjoyed the sight of harbor porpoises, cormorants, pelicans, seals and sea lions — and then the spouting plume and glistening back of a gray whale that gave me pause. Too many have been seen inside the bay recently.California’s gray whales have been considered an environmental success story since the passage of the 1972 Marine Mammal Protection Act and 1986’s global ban on commercial whaling. They’re also a major tourist attraction during their annual 12,000-mile round-trip migration between the Arctic and their breeding lagoons in Baja California. In late winter and early spring — when they head back north and are closest to the shoreline, with the moms protecting the calves — they can be viewed not only from whale-watching boats but also from promontories along the California coast including Point Loma in San Diego, Point Lobos in Monterey and Bodega Head and Shelter Cove in Northern California.In 1972, there were some 10,000 gray whales in the population on the eastern side of the Pacific. Generations of whaling all but eliminated the western population — leaving only about 150 alive today off of East Asia and Russia. Over the four decades following passage of the Marine Mammal Protection Act, the eastern whale numbers grew steadily to 27,000 by 2016, a hopeful story of protection leading to restoration. Then, unexpectedly over the last nine years, the eastern gray whale population has crashed, plummeting by more than half to 12,950, according to a recent report by the National Oceanic and Atmospheric Administration, the lowest numbers since the 1970s.Today’s changing ocean and Arctic ice conditions linked to fossil-fuel-fired climate change are putting this species again at risk of extinction.While there has been some historical variation in their population, gray whales — magnificent animals that can grow up to 50 feet long and weigh as much as 80,000 pounds — are now regularly starving to death as their main food sources disappear. This includes tiny shrimp-like amphipods in the whales’ summer feeding grounds in the Arctic. It’s there that the baleen filter feeders spend the summer gorging on tiny crustaceans from the muddy bottom of the Bering, Chuckchi and Beaufort seas, creating shallow pits or potholes in the process. But, with retreating sea ice, there is less under-ice algae to feed the amphipods that in turn feed the whales. Malnourished and starving whales are also producing fewer offspring.As a result of more whales washing up dead, NOAA declared an “unusual mortality event” in California in 2019. Between 2019 and 2025, at least 1,235 gray whales were stranded dead along the West Coast. That’s eight times greater than any previous 10-year average.While there seemed to be some recovery in 2024, 2025 brought back the high casualty rates. The hungry whales now come into crowded estuaries like San Francisco Bay to feed, making them vulnerable to ship traffic. Nine in the bay were killed by ship strikes last year while another 12 appear to have died of starvation.Michael Stocker, executive director of the acoustics group Ocean Conservation Research, has been leading whale-viewing trips to the gray whales’ breeding ground at San Ignacio Lagoon in Baja California since 2006. “When we started going, there would be 400 adult whales in the lagoon, including 100 moms and their babies,” he told me. “This year we saw about 100 adult whales, only five of which were in momma-baby pairs.” Where once the predators would not have dared to hunt, he said that more recently, “orcas came into the lagoon and ate a couple of the babies because there were not enough adult whales to fend them off.”Southern California’s Gray Whale Census & Behavior Project reported record-low calf counts last year.The loss of Arctic sea ice and refusal of the world’s nations recently gathered at the COP30 Climate Summit in Brazil to meet previous commitments to reduce greenhouse gas emissions suggest that the prospects for gray whales and other wildlife in our warming seas, including key food species for humans such as salmon, cod and herring, look grim.California shut down the nation’s last whaling station in 1971. And yet now whales that were once hunted for their oil are falling victim to the effects of the petroleum or “rock oil” that replaced their melted blubber as a source of light and lubrication. That’s because the burning of oil, coal and gas are now overheating our blue planet. While humans have gone from hunting to admiring whales as sentient beings in recent decades, our own intelligence comes into question when we fail to meet commitments to a clean carbon-free energy future. That could be the gray whales’ last best hope, if there is any.David Helvarg is the executive director of Blue Frontier, an ocean policy group, and co-host of “Rising Tide: The Ocean Podcast.” He is the author of the forthcoming “Forest of the Sea: The Remarkable Life and Imperiled Future of Kelp.”

Pills that communicate from the stomach could improve medication adherence

MIT engineers designed capsules with biodegradable radio frequency antennas that can reveal when the pill has been swallowed.

In an advance that could help ensure people are taking their medication on schedule, MIT engineers have designed a pill that can report when it has been swallowed.The new reporting system, which can be incorporated into existing pill capsules, contains a biodegradable radio frequency antenna. After it sends out the signal that the pill has been consumed, most components break down in the stomach while a tiny RF chip passes out of the body through the digestive tract.This type of system could be useful for monitoring transplant patients who need to take immunosuppressive drugs, or people with infections such as HIV or TB, who need treatment for an extended period of time, the researchers say.“The goal is to make sure that this helps people receive the therapy they need to help maximize their health,” says Giovanni Traverso, an associate professor of mechanical engineering at MIT, a gastroenterologist at Brigham and Women’s Hospital, and an associate member of the Broad Institute of MIT and Harvard.Traverso is the senior author of the new study, which appears today in Nature Communications. Mehmet Girayhan Say, an MIT research scientist, and Sean You, a former MIT postdoc, are the lead authors of the paper.A pill that communicatesPatients’ failure to take their medicine as prescribed is a major challenge that contributes to hundreds of thousands of preventable deaths and billions of dollars in health care costs annually.To make it easier for people to take their medication, Traverso’s lab has worked on delivery capsules that can remain in the digestive tract for days or weeks, releasing doses at predetermined times. However, this approach may not be compatible with all drugs.“We’ve developed systems that can stay in the body for a long time, and we know that those systems can improve adherence, but we also recognize that for certain medications, we can’t change the pill,” Traverso says. “The question becomes: What else can we do to help the person and help their health care providers ensure that they’re receiving the medication?”In their new study, the researchers focused on a strategy that would allow doctors to more closely monitor whether patients are taking their medication. Using radio frequency — a type of signal that can be easily detected from outside the body and is safe for humans — they designed a capsule that can communicate after the patient has swallowed it.There have been previous efforts to develop RF-based signaling devices for medication capsules, but those were all made from components that don’t break down easily in the body and would need to travel through the digestive system.To minimize the potential risk of any blockage of the GI tract, the MIT team decided to create an RF-based system that would be bioresorbable, meaning that it can be broken down and absorbed by the body. The antenna that sends out the RF signal is made from zinc, and it is embedded into a cellulose particle.“We chose these materials recognizing their very favorable safety profiles and also environmental compatibility,” Traverso says.The zinc-cellulose antenna is rolled up and placed inside a capsule along with the drug to be delivered. The outer layer of the capsule is made from gelatin coated with a layer of cellulose and either molybdenum or tungsten, which blocks any RF signal from being emitted.Once the capsule is swallowed, the coating breaks down, releasing the drug along with the RF antenna. The antenna can then pick up an RF signal sent from an external receiver and, working with a small RF chip, sends back a signal to confirm that the capsule was swallowed. This communication happens within 10 minutes of the pill being swallowed.The RF chip, which is about 400 by 400 micrometers, is an off-the-shelf chip that is not biodegradable and would need to be excreted through the digestive tract. All of the other components would break down in the stomach within a week.“The components are designed to break down over days using materials with well-established safety profiles, such as zinc and cellulose, which are already widely used in medicine,” Say says. “Our goal is to avoid long-term accumulation while enabling reliable confirmation that a pill was taken, and longer-term safety will continue to be evaluated as the technology moves toward clinical use.”Promoting adherenceTests in an animal model showed that the RF signal was successfully transmitted from inside the stomach and could be read by an external receiver at a distance up to 2 feet away. If developed for use in humans, the researchers envision designing a wearable device that could receive the signal and then transmit it to the patient’s health care team.The researchers now plan to do further preclinical studies and hope to soon test the system in humans. One patient population that could benefit greatly from this type of monitoring is people who have recently had organ transplants and need to take immunosuppressant drugs to make sure their body doesn’t reject the new organ.“We want to prioritize medications that, when non-adherence is present, could have a really detrimental effect for the individual,” Traverso says.Other populations that could benefit include people who have recently had a stent inserted and need to take medication to help prevent blockage of the stent, people with chronic infectious diseases such as tuberculosis, and people with neuropsychiatric disorders whose conditions may impair their ability to take their medication.The research was funded by Novo Nordisk, MIT’s Department of Mechanical Engineering, the Division of Gastroenterology at Brigham and Women’s Hospital, and the U.S. Advanced Research Projects Agency for Health (ARPA-H), which notes that the views and conclusions contained in this article are those of the authors and should not be interpreted as representing the official policies, either expressed or implied, of the United States Government.

Costa Rica Rescues Orphaned Manatee Calf in Tortuguero

A young female manatee washed up alone on a beach in Tortuguero National Park early on January 5, sparking a coordinated effort by local authorities to save the animal. The calf, identified as a Caribbean manatee, appeared separated from its mother, with no immediate signs of her in the area. Park rangers received the first […] The post Costa Rica Rescues Orphaned Manatee Calf in Tortuguero appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

A young female manatee washed up alone on a beach in Tortuguero National Park early on January 5, sparking a coordinated effort by local authorities to save the animal. The calf, identified as a Caribbean manatee, appeared separated from its mother, with no immediate signs of her in the area. Park rangers received the first alert around 8 a.m. from visitors who spotted the stranded calf. Staff from the National System of Conservation Areas (SINAC) quickly arrived on site. They secured the animal to prevent further harm and began searching nearby waters and canals for the mother. Despite hours of monitoring, officials found no evidence of her presence. “The calf showed no visible injuries but needed prompt attention due to its age and vulnerability,” said a SINAC official involved in the operation. Without a parent nearby, the young manatee faced risks from dehydration and predators in the open beach environment. As the day progressed, the Ministry of Environment and Energy (MINAE) joined the response. They decided to relocate the calf for specialized care. In a first for such rescues in the region, teams arranged an aerial transport to move the animal safely to a rehabilitation facility. This step aimed to give the manatee the best chance at survival while experts assess its health. Once at the center, the calf received immediate feeding and medical checks. During one session, it dozed off mid-meal, a sign that it felt secure in the hands of caretakers. Biologists now monitor the animal closely, hoping to release it back into the wild if conditions allow. Manatees, known locally as manatíes, inhabit the coastal waters and rivers of Costa Rica’s Caribbean side. They often face threats from boat strikes, habitat loss, and pollution. Tortuguero, with its network of canals and protected areas, serves as a key habitat for the species. Recent laws have strengthened protections, naming the manatee a national marine symbol to raise awareness. This incident highlights the ongoing challenges for wildlife in the area. Local communities and tourists play a key role in reporting sightings, which can lead to timely interventions. Authorities encourage anyone spotting distressed animals to contact SINAC without delay. The rescue team expressed gratitude to those who reported the stranding. Their quick action likely saved the calf’s life. As investigations continue, officials will determine if environmental factors contributed to the separation. For now, the young manatee rests under professional care, a small win for conservation efforts in Limón. The post Costa Rica Rescues Orphaned Manatee Calf in Tortuguero appeared first on The Tico Times | Costa Rica News | Travel | Real Estate.

New Records Reveal the Mess RFK Jr. Left When He Dumped a Dead Bear in Central Park

Robert F. Kennedy Jr. says he left a bear cub's corpse in Central Park in 2014 to "be fun." Records newly obtained by WIRED show what he left New York civil servants to clean up.

This story contains graphic imagery.On August 4, 2024, when now-US health secretary Robert F. Kennedy Jr. was still a presidential candidate, he posted a video on X in which he admitted to dumping a dead bear cub near an old bicycle in Central Park 10 years prior, in a mystifying attempt to make the young bear’s premature death look like a cyclist’s hit and run.WIRED's Guide to How the Universe WorksYour weekly roundup of the best stories on health care, the climate crisis, new scientific discoveries, and more. At the time, Kennedy said he was trying to get ahead of a story The New Yorker was about to publish that mentioned the incident. But in coming clean, Kennedy solved a decade-old New York City mystery: How and why had a young black bear—a wild animal native to the state, but not to modern-era Manhattan—been found dead under a bush near West 69th Street in Central Park?WIRED has obtained documents that shed new light on the incident from the New York City Department of Parks and Recreation via a public records request. The documents—which include previously unseen photos of the bear cub—resurface questions about the bizarre choices Kennedy says he made, which left city employees dealing with the aftermath and lamenting the cub’s short life and grim fate.A representative for Kennedy did not respond for comment. The New York Police Department (NYPD) and the Parks Department referred WIRED to the New York Department of Environmental Conservation (NYDEC). NYDEC spokesperson Jeff Wernick tells WIRED that its investigation into the death of the bear cub was closed in late 2014 “due to a lack of sufficient evidence” to determine if state law was violated. They added that New York’s environmental conservation law forbids “illegal possession of a bear without a tag or permit and illegal disposal of a bear,” and that “the statute of limitations for these offenses is one year.”The first of a number of emails between local officials coordinating the handling of the baby bear’s remains was sent at 10:16 a.m. on October 6, 2014. Bonnie McGuire, then-deputy director at Urban Park Rangers (UPR), told two colleagues that UPR sergeant Eric Handy had recently called her about a “dead black bear” found in Central Park.“NYPD told him they will treat it like a crime scene so he can’t get too close,” McGuire wrote. “I’ve asked him to take pictures and send them over and to keep us posted.”“Poor little guy!” McGuire wrote in a separate email later that morning.According to emails obtained by WIRED, Handy updated several colleagues throughout the day, noting that the NYDEC had arrived on scene, and that the agency was planning to coordinate with the NYPD to transfer the body to the Bronx Zoo, where it would be inspected by the NYPD’s animal cruelty unit and the ASPCA. (This didn’t end up happening, as the NYDEC took the bear to a state lab near Albany.)Imagery of the bear has been public before—local news footage from October 2014 appears to show it from a distance. However, the documents WIRED obtained show previously unpublished images that investigators took of the bear on the scene, which Handy sent as attachments in emails to McGuire. The bear is seen laying on its side in an unnatural position. Its head protrudes from under a bush and rests next to a small patch of grass. Bits of flesh are visible through the bear’s black fur, which was covered in a few brown leaves.Courtesy of NYC Parks

U.S. Military Ends Practice of Shooting Live Animals to Train Medics to Treat Battlefield Wounds

The 2026 National Defense Authorization Act bans the use of live animals in live fire training exercises and prohibits "painful" research on domestic cats and dogs

U.S. Military Ends Practice of Shooting Live Animals to Train Medics to Treat Battlefield Wounds The 2026 National Defense Authorization Act bans the use of live animals in live fire training exercises and prohibits “painful” research on domestic cats and dogs Sarah Kuta - Daily Correspondent January 5, 2026 12:00 p.m. The U.S. military will no longer shoot live goats and pigs to help combat medics learn to treat battlefield injuries. Pexels The United States military is no longer shooting live animals as part of its trauma training exercises for combat medics. The 2026 National Defense Authorization Act, which was enacted on December 18, bans the use of live animals—including dogs, cats, nonhuman primates and marine mammals—in any live fire trauma training conducted by the Department of Defense. It directs military leaders to instead use advanced simulators, mannequins, cadavers or actors. According to the Associated Press’ Ben Finley, the bill ends the military’s practice of shooting live goats and pigs to help combat medics learn to treat battlefield injuries. However, the military is allowed to continue other practices involving animals, including stabbing, burning and testing weapons on them. In those scenarios, the animals are supposed to be anesthetized, per the AP. “With today’s advanced simulation technology, we can prepare our medics for the battlefield while reducing harm to animals,” says Florida Representative Vern Buchanan, who advocated for the change, in a statement shared with the AP. He described the military’s practices as “outdated and inhumane” and called the move a “major step forward in reducing unnecessary suffering.” Quick fact: What is the National Defense Authorization Act? The National Defense Authorization Act, or NDAA, is a law passed each year that authorizes the Department of Defense’s appropriated funds, greenlights the Department of Energy’s nuclear weapons programs and sets defense policies and restrictions, among other activities, for the upcoming fiscal year. Organizations have opposed the military’s use of live animals in trauma training, too, including the Physicians Committee for Responsible Medicine and the People for the Ethical Treatment of Animals. PETA, a nonprofit animal advocacy group, described the legislation as a “major victory for animals” that will “save countless animals from heinous cruelty” in a statement. The legislation also prohibits “painful research” on domestic cats and dogs, though exceptions can be made under certain circumstances, such as interests of national security. “Painful” research includes any training, experiments or tests that fall into specific pain categories outlined by the U.S. Department of Agriculture. For example, military cats and dogs can no longer be exposed to extreme environmental conditions or noxious stimuli they cannot escape, nor can they be forced to exercise to the point of distress or exhaustion. The bill comes amid a broader push to end the use of live animals in federal tests, studies and training, reports Linda F. Hersey for Stars and Stripes. After temporarily suspending live tissue training with animals in 2017, the U.S. Coast Guard made the ban permanent in 2018. In 2024, U.S. lawmakers directed the Department of Veterans Affairs to end its experiments on cats, dogs and primates. And in May 2025, the U.S. Navy announced it would no longer conduct research testing on cats and dogs. As the Washington Post’s Ernesto Londoño reported in 2013, the U.S. military has used animals for medical training since at least the Vietnam War. However, the practice largely went unnoticed until 1983, when the U.S. Army planned to anesthetize dogs, hang them from nylon mesh slings and shoot them at an indoor firing range in Maryland. When activists and lawmakers learned of the proposal, they decried the practice and convinced then-Defense Secretary Caspar Weinberger to ban the shooting of dogs. However, in 1984, the AP reported the U.S. military would continue shooting live goats and pigs for wound treatment training, with a military medical study group arguing “there is no substitute for the live animals as a study object for hands-on training.” In the modern era, it’s not clear how often and to what extent the military uses animals, per the AP. And despite the Department of Defense’s past efforts to minimize the use of animals for trauma training, a 2022 report from the Government Accountability Office, the watchdog agency charged with providing fact-based, nonpartisan information to Congress, determined that the agency was “unable to fully demonstrate the extent to which it has made progress.” The Defense Health Agency, the U.S. government entity responsible for the military’s medical training, says in a statement shared with the AP that it “remains committed to replacement of animal models without compromising the quality of medical training,” including the use of “realistic training scenarios to ensure medical providers are well-prepared to care for the combat-wounded.” Animal activists say technology has come a long way in recent decades so, beyond the animal welfare concerns, the military simply no longer needs to use live animals for training. Instead, military medics can simulate treating battlefield injuries using “cut suits,” or realistic suits with skin, blood and organs that are worn by a live person to mimic traumatic injuries. However, not everyone agrees. Michael Bailey, an Army combat medic who served two tours in Iraq, told the Washington Post in 2013 that his training with a sedated goat was invaluable. “You don’t get that [sense of urgency] from a mannequin,” he told the publication. “You don’t get that feeling of this mannequin is going to die. When you’re talking about keeping someone alive when physics and the enemy have done their best to do the opposite, it’s the kind of training that you want to have in your back pocket.” Get the latest stories in your inbox every weekday.

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