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Majestic wild horses are trampling Mono Lake's otherworldly landscape. The feds plan a roundup

News Feed
Tuesday, October 7, 2025

Several dozen horses calmly graze along the shores of Mono Lake, a sparkling saline expanse spread out before the jagged Sierra Nevada mountains. The September sun is blazing. A pair of brown horses come up side by side and stare intensely at an approaching visitor.These wild equines soon may disappear from beside the ancient lake. The prospect is stirring emotional disagreement over the future of the herd, which has surged to more than three times what federal officials say the land can support.“These horses deserve a place to roam and be free, but around Mono Lake is not the place,” said Bartshe Miller of the Mono Lake Committee, an environmental nonprofit. Bartshe Miller, Eastern Sierra policy director for the Mono Lake Committee, looks out onto the landscape at Warm Springs, a remote area on the east side of Mono Lake. Earlier this year, the U.S. Forest Service and Bureau of Land Management approved a plan to round up and remove hundreds of wild horses roaming beyond the roughly 200,000 acres designated for them along the California and Nevada border. No date has been set, but it could be as soon as this fall.It would be a relief for some. Environmentalists say the horses are degrading the otherworldly landscape at Mono Lake, including bird habitat and its famed tufa — textured rock columns that would look at home on Mars. Ranchers say the animals are gobbling down plants needed to sustain their cattle. Federal officials highlight the safety hazard posed by horses that have wandered onto highways.Others see the move as a travesty. One method to oust the horses would use helicopters to drive them into a trap, which animal welfare groups say creates dangerous, even deadly, situations for horses. A pending federal bill would ban the practice.Local tribes and nonprofits have partnered to fight the roundup plan, arguing that the Indigenous community should be tapped to manage the animals that roam their ancestral lands. A separate group of plaintiffs has sued the government, claiming it’s reneging on its duty to protect the horses. A group of horses roams near the community of Benton, Calif., not far from the Nevada border. Ronda Kauk, of the Mono Lake Kootzaduka’a tribe, stands near wild horses. “We’re all living spirits,” said Ronda Kauk, a member of the Mono Lake Kootzaduka’a tribe. “And it’s sad that people just don’t care about another living thing because they think it doesn’t belong there.”Unseen evolutionFor 36 years, Dave Marquart was part of a small team that monitored wetlands rimming Mono Lake, places so inaccessible even four-wheel drives can get stuck. Flung out far on the landscape, only wildlife could enjoy them. The area was a major nesting site for yellow-headed black birds, red-winged black birds, marsh wrens, soras and Virginia rails.“There weren’t a lot of people that saw the transition that I saw, from healthy wetlands to completely trampled and devastated wetlands,” said Marquart, who was an interpretive naturalist for the Mono Lake Tufa State Natural Reserve until he retired in 2019. “It was quite a drastic change.”Marquart recalled a time when he’d encounter fewer than 50 horses. They’d bolt when they saw his vehicle coming. That fear faded and their ranks grew. Over time, he said, they stamped ponds and urinated and defecated in the water. The birds stopped showing up. Bartshe Miller holds grass he said was pulled up by the roots by wild horses roaming near Mono Lake. According to Miller, horses started arriving near the lake around 2015. Before retiring, Marquart said, he helped organize a field trip involving the Forest Service, BLM and State Parks to showcase the impacts.“Everybody saw that it was an issue and felt that something needed to be done,” he said.Today, sizable mounds of horse manure dot Warm Springs, a remote area along the eastern edge of Mono Lake that Marquart had raised the alarm about during his tenure. White bones of fallen equines rest in the alkaline meadows. Chestnut fur gleamed on a hoof attached to a leg bone.Miller, the Mono Lake Committee’s Eastern Sierra policy director, and Geoff McQuilkin, its executive director, led the way to a burbling spring rimmed by innumerable hoof prints. Surrounding vegetation was nibbled to nubs. Wildlife compete for the limited water here. The bleached bones of a wild horse lie in vegetation near the shores of Mono Lake. “The birds that would have a safe haven in that spring or be hidden away from raptors and predators overhead don’t have that opportunity anymore,” McQuilkin said.The pair first remembered the horses showing up in remote areas around the lake in 2015, as the state was gripped by drought. By 2021, as they pushed west, they landed at South Tufa, where tourists congregate to gaze at the limestone columns. In the spring of 2023, horse carcasses emerged along the shores of South Tufa and nearby Navy Beach as the snow from a winter of biblical proportions melted.“The recent deaths of these horses provide further evidence that the size of this herd cannot be supported by the landscape which they are expanding onto,” Lisa Cox, a spokesperson for the Inyo National Forest, said at the time.“They’re medicine.” Rana Saulque, vice chairwoman of the Utu Utu Gwaitu Paiute tribe, walks near a natural spring in an area where wild horses gather near the community of Benton, Calif. On a pleasantly cool day in September, Rana Saulque stared transfixed at a group of roughly 50 wild horses in the River Spring Lakes Ecological Reserve, not far from her tribe’s reservation near the town of Benton. Saulque, vice chairwoman for the Utu Utu Gwaitu Paiute tribe, draws a parallel between ousting the horses and the historic persecution of her people by the government. “They’re going to run them down with helicopters and genocide them, just like they ran down us,” she said through tears. A striking cremello horse stood out from the rest — a beloved subject for photographers who sojourn here. A brown foal with a white stripe on its muzzle teetered on toothpick legs. Several babies hugged close to their moms.Mostly, the horses peacefully graze, but two rear up momentarily. “That’s horsing around,” Saulque said. Then they begin galloping and suddenly they look powerful and sleek. Epic, like a poster for a classic western film. Dozens of wild horses graze on the River Spring Lakes Ecological Reserve. “They’re so magical,” the vice chairwoman said. “They’re medicine for people.”Federal officials stress that they have precautions in place to ensure safety during helicopter roundups. That includes avoiding peak foaling periods and hot weather that would stress the horses.The Utu Utu Gwaitu Paiute are among a coalition that wants to pause the planned roundups for two years and ultimately secure land back to set aside a sanctuary for the horses to roam. As envisioned, local tribes would help manage the herd, including darting horses with a birth control vaccine to limit population growth. Horses could be put to work at pack stations, equine therapy and rodeo schools for kids, the group says.The proposal could also help revive horse culture that runs deep in the tribal communities, Saulque said. Jim Walker, her great-great-grandfather and a respected medicine man, rode mustangs all the way to Florida, visiting tribes along the way to exchange medicine and horses. Maya Jamal Kasberg, founder of nonprofit Made by Mother Earth, is part of the coalition that wants to scrap the current plan to round up Montgomery Pass horses. Kauk’s tribe historically rode the horses from Lee Vining into Yosemite to gather basket-making materials, among other activities. Mustangs were tapped for Native American rodeos and relay races, she added.According to the coalition that includes the nonprofit American Wild Horse Conservation, the feds and groups like the Mono Lake Committee have the science all wrong. The herbivores chomp down invasive cheatgrass that poses wildfire risk, and their poop — maligned by many — actually spreads native seeds, they say. Wild and free — for nowAt the heart of the emotional battle playing out in the Eastern Sierra is the Montgomery Pass wild horse herd. According to the U.S. Forest Service, its origin is unknown. But there’s speculation that it’s linked to mustang drives between the Owens Valley and Nevada.A 1971 law declared wild horses and burros “living symbols of the historic and pioneer spirit of the West,” and made it illegal to harass, capture or kill them on public lands. But the Forest Service and BLM, which became responsible for managing them, can remove “excess animals” to preserve the health of the range.The way this often plays out is that horses are rounded up and offered for adoption or sale. Those that aren’t taken in by a private owner are shipped to pastures where they often live out their remaining days. A census last year found that there are now about 700 horses in the Montgomery Pass herd. Federal officials designated the Montgomery Pass Wild Horse Territory, a remote area spanning sagebrush steppe and pinyon pine forest east of Mono Lake. They say the land can sustainably support 138 to 230 horses. As of last year, nearly 700 were documented in an aerial survey, with most ranging outside the territory, according to the agencies. Now under a plan approved in March, up to 500 horses could be ousted, with the Forest Service leading the effort and BLM assisting.Both agencies declined requests for interviews for this story, citing pending litigation. In August, a documentary filmmaker, primary care physician and wildlife ecologist sued the government authorities overseeing the agencies, claiming the roundups will decimate the herd to the point where long-term survival is unlikely.“This case represents yet another attempt by the agencies to evade their statutory duties to protect, preserve and manage the herd,” the suit reads.The government has agreed not to round up horses before Oct. 20, according to court documents.When multiple uses collide Rancher Leslie Hunewill looks at calves and their moms at her family’s historic ranch in Bridgeport. Leslie Hunewill’s cattle ranching family sees quite a bit of “horse activity” on grazing lands in an area called the Mono Sand Flats, to the east and north of the lake. Since purchasing the right to use the public land, her outfit has been able to graze there for only about five weeks in the last two years — and not consecutively. The culprit? “A huge number of horses,” she said.“Our cattle have not been out there,” she said. “There’s nothing for them to eat.” Cows aren’t allowed on the roughly 50,000-acre expanse during the growing season. But the horses, facing no fences, go for what’s green and pushing up, she said.“It doesn’t make sense for us to overuse or overgraze the land when we need to come back to it,” she said. “So when we are doing our part to manage the portion of it that we can, which is, say, our use of the cattle on that land, that’s all well and good. But who is taking charge of the horses and saying, this is too heavy use?” The Hunewills, who have deep roots in the Eastern Sierra, operate a guest ranch in Bridgeport. The law directs agencies to manage horse populations to maintain a “thriving natural ecological balance.” BLM and the Forest Service have to consider mustangs alongside grazing, wildlife and what’s good for the land. Some say the agencies have kicked the can down the road on management of the Montgomery Pass herd.Hunewill’s family has deep roots in the Eastern Sierra. Her great-great-great-grandfather came to California in the 1860s as a gold miner. He struck it rich, and got into the lumber business. When that stopped paying out, he used his oxen to feed the town of Bodie. Her family is still in the beef business, with the meat generally staying on the West Coast.They employ quite a few mustangs at their guest ranch operation in the town of Bridgeport, including Jethro, a friendly brown fella with a splash of white on his forehead. They’re hardy horses, and can be enlisted as pack animals high up in the mountains. Some don’t need shoes because of their “great feet.” But their robustness means “everybody’s already got their mustang,” she said, stymieing the prospect of mass adoptions.Shifting dynamicsWild horse populations can increase as much as 20% a year. Montgomery Pass horses used to summer in the high country and were once kept in check by mountain lions that preyed on foals, according to John Turner, a professor at the University of Toledo College of Medicine, who studied the herd for decades.That changed around 2008 or 2009, when the horses began lingering at lower elevations, where the open country makes it difficult for lions to hunt.The herd’s population surged. Turner sees the government’s current system of rounding up horses and holding them as unsustainable. And costly.“The gathers are successful at that time, but the reproductive rate of the animals is greater than the capacity to remove them,” he said.

Federal officials plan to round up wild horses roaming the Eastern Sierra, citing hazards and damage. But local tribes and others seek a different outcome.

Several dozen horses calmly graze along the shores of Mono Lake, a sparkling saline expanse spread out before the jagged Sierra Nevada mountains. The September sun is blazing. A pair of brown horses come up side by side and stare intensely at an approaching visitor.

These wild equines soon may disappear from beside the ancient lake. The prospect is stirring emotional disagreement over the future of the herd, which has surged to more than three times what federal officials say the land can support.

“These horses deserve a place to roam and be free, but around Mono Lake is not the place,” said Bartshe Miller of the Mono Lake Committee, an environmental nonprofit.

Bartshe Miller looks out onto the landscape at Mono Lake.

Bartshe Miller, Eastern Sierra policy director for the Mono Lake Committee, looks out onto the landscape at Warm Springs, a remote area on the east side of Mono Lake.

Earlier this year, the U.S. Forest Service and Bureau of Land Management approved a plan to round up and remove hundreds of wild horses roaming beyond the roughly 200,000 acres designated for them along the California and Nevada border. No date has been set, but it could be as soon as this fall.

It would be a relief for some. Environmentalists say the horses are degrading the otherworldly landscape at Mono Lake, including bird habitat and its famed tufa — textured rock columns that would look at home on Mars. Ranchers say the animals are gobbling down plants needed to sustain their cattle. Federal officials highlight the safety hazard posed by horses that have wandered onto highways.

Others see the move as a travesty. One method to oust the horses would use helicopters to drive them into a trap, which animal welfare groups say creates dangerous, even deadly, situations for horses. A pending federal bill would ban the practice.

Local tribes and nonprofits have partnered to fight the roundup plan, arguing that the Indigenous community should be tapped to manage the animals that roam their ancestral lands. A separate group of plaintiffs has sued the government, claiming it’s reneging on its duty to protect the horses.

A group of horses

A group of horses roams near the community of Benton, Calif., not far from the Nevada border.

Ronda Kauk stands near wild horses.

Ronda Kauk, of the Mono Lake Kootzaduka’a tribe, stands near wild horses.

“We’re all living spirits,” said Ronda Kauk, a member of the Mono Lake Kootzaduka’a tribe. “And it’s sad that people just don’t care about another living thing because they think it doesn’t belong there.”

Unseen evolution

For 36 years, Dave Marquart was part of a small team that monitored wetlands rimming Mono Lake, places so inaccessible even four-wheel drives can get stuck. Flung out far on the landscape, only wildlife could enjoy them. The area was a major nesting site for yellow-headed black birds, red-winged black birds, marsh wrens, soras and Virginia rails.

“There weren’t a lot of people that saw the transition that I saw, from healthy wetlands to completely trampled and devastated wetlands,” said Marquart, who was an interpretive naturalist for the Mono Lake Tufa State Natural Reserve until he retired in 2019. “It was quite a drastic change.”

Marquart recalled a time when he’d encounter fewer than 50 horses. They’d bolt when they saw his vehicle coming. That fear faded and their ranks grew. Over time, he said, they stamped ponds and urinated and defecated in the water. The birds stopped showing up.

Bartshe Miller holds grass

Bartshe Miller holds grass he said was pulled up by the roots by wild horses roaming near Mono Lake. According to Miller, horses started arriving near the lake around 2015.

Before retiring, Marquart said, he helped organize a field trip involving the Forest Service, BLM and State Parks to showcase the impacts.

“Everybody saw that it was an issue and felt that something needed to be done,” he said.

Today, sizable mounds of horse manure dot Warm Springs, a remote area along the eastern edge of Mono Lake that Marquart had raised the alarm about during his tenure. White bones of fallen equines rest in the alkaline meadows. Chestnut fur gleamed on a hoof attached to a leg bone.

Miller, the Mono Lake Committee’s Eastern Sierra policy director, and Geoff McQuilkin, its executive director, led the way to a burbling spring rimmed by innumerable hoof prints. Surrounding vegetation was nibbled to nubs. Wildlife compete for the limited water here.

A wild horse skeleton

The bleached bones of a wild horse lie in vegetation near the shores of Mono Lake.

“The birds that would have a safe haven in that spring or be hidden away from raptors and predators overhead don’t have that opportunity anymore,” McQuilkin said.

The pair first remembered the horses showing up in remote areas around the lake in 2015, as the state was gripped by drought. By 2021, as they pushed west, they landed at South Tufa, where tourists congregate to gaze at the limestone columns. In the spring of 2023, horse carcasses emerged along the shores of South Tufa and nearby Navy Beach as the snow from a winter of biblical proportions melted.

“The recent deaths of these horses provide further evidence that the size of this herd cannot be supported by the landscape which they are expanding onto,” Lisa Cox, a spokesperson for the Inyo National Forest, said at the time.

“They’re medicine.”

Rana Saulque, vice chairwoman for the Utu Utu Gwaitu Paiute tribe, walks near a natural spring.

Rana Saulque, vice chairwoman of the Utu Utu Gwaitu Paiute tribe, walks near a natural spring in an area where wild horses gather near the community of Benton, Calif.

On a pleasantly cool day in September, Rana Saulque stared transfixed at a group of roughly 50 wild horses in the River Spring Lakes Ecological Reserve, not far from her tribe’s reservation near the town of Benton.

Saulque, vice chairwoman for the Utu Utu Gwaitu Paiute tribe, draws a parallel between ousting the horses and the historic persecution of her people by the government.

“They’re going to run them down with helicopters and genocide them, just like they ran down us,” she said through tears.

A striking cremello horse stood out from the rest — a beloved subject for photographers who sojourn here. A brown foal with a white stripe on its muzzle teetered on toothpick legs. Several babies hugged close to their moms.

Mostly, the horses peacefully graze, but two rear up momentarily. “That’s horsing around,” Saulque said. Then they begin galloping and suddenly they look powerful and sleek. Epic, like a poster for a classic western film.

Dozens of wild horses graze

Dozens of wild horses graze on the River Spring Lakes Ecological Reserve.

“They’re so magical,” the vice chairwoman said. “They’re medicine for people.”

Federal officials stress that they have precautions in place to ensure safety during helicopter roundups. That includes avoiding peak foaling periods and hot weather that would stress the horses.

The Utu Utu Gwaitu Paiute are among a coalition that wants to pause the planned roundups for two years and ultimately secure land back to set aside a sanctuary for the horses to roam. As envisioned, local tribes would help manage the herd, including darting horses with a birth control vaccine to limit population growth. Horses could be put to work at pack stations, equine therapy and rodeo schools for kids, the group says.

The proposal could also help revive horse culture that runs deep in the tribal communities, Saulque said. Jim Walker, her great-great-grandfather and a respected medicine man, rode mustangs all the way to Florida, visiting tribes along the way to exchange medicine and horses.

Maya Jamal Kasberg explores an area where wild horses graze

Maya Jamal Kasberg, founder of nonprofit Made by Mother Earth, is part of the coalition that wants to scrap the current plan to round up Montgomery Pass horses.

Kauk’s tribe historically rode the horses from Lee Vining into Yosemite to gather basket-making materials, among other activities. Mustangs were tapped for Native American rodeos and relay races, she added.

According to the coalition that includes the nonprofit American Wild Horse Conservation, the feds and groups like the Mono Lake Committee have the science all wrong. The herbivores chomp down invasive cheatgrass that poses wildfire risk, and their poop — maligned by many — actually spreads native seeds, they say.

Wild and free — for now

At the heart of the emotional battle playing out in the Eastern Sierra is the Montgomery Pass wild horse herd. According to the U.S. Forest Service, its origin is unknown. But there’s speculation that it’s linked to mustang drives between the Owens Valley and Nevada.

A 1971 law declared wild horses and burros “living symbols of the historic and pioneer spirit of the West,” and made it illegal to harass, capture or kill them on public lands. But the Forest Service and BLM, which became responsible for managing them, can remove “excess animals” to preserve the health of the range.

The way this often plays out is that horses are rounded up and offered for adoption or sale. Those that aren’t taken in by a private owner are shipped to pastures where they often live out their remaining days.

Horses with mountains in the background

A census last year found that there are now about 700 horses in the Montgomery Pass herd.

Federal officials designated the Montgomery Pass Wild Horse Territory, a remote area spanning sagebrush steppe and pinyon pine forest east of Mono Lake. They say the land can sustainably support 138 to 230 horses.

As of last year, nearly 700 were documented in an aerial survey, with most ranging outside the territory, according to the agencies.

Now under a plan approved in March, up to 500 horses could be ousted, with the Forest Service leading the effort and BLM assisting.

Both agencies declined requests for interviews for this story, citing pending litigation. In August, a documentary filmmaker, primary care physician and wildlife ecologist sued the government authorities overseeing the agencies, claiming the roundups will decimate the herd to the point where long-term survival is unlikely.

“This case represents yet another attempt by the agencies to evade their statutory duties to protect, preserve and manage the herd,” the suit reads.

The government has agreed not to round up horses before Oct. 20, according to court documents.

When multiple uses collide

Rancher Leslie Hunewill looks out at cows at a historic ranch Bridgeport.

Rancher Leslie Hunewill looks at calves and their moms at her family’s historic ranch in Bridgeport.

Leslie Hunewill’s cattle ranching family sees quite a bit of “horse activity” on grazing lands in an area called the Mono Sand Flats, to the east and north of the lake. Since purchasing the right to use the public land, her outfit has been able to graze there for only about five weeks in the last two years — and not consecutively. The culprit? “A huge number of horses,” she said.

“Our cattle have not been out there,” she said. “There’s nothing for them to eat.”

Cows aren’t allowed on the roughly 50,000-acre expanse during the growing season. But the horses, facing no fences, go for what’s green and pushing up, she said.

“It doesn’t make sense for us to overuse or overgraze the land when we need to come back to it,” she said. “So when we are doing our part to manage the portion of it that we can, which is, say, our use of the cattle on that land, that’s all well and good. But who is taking charge of the horses and saying, this is too heavy use?”

A sign for the Hunewill ranch

The Hunewills, who have deep roots in the Eastern Sierra, operate a guest ranch in Bridgeport.

The law directs agencies to manage horse populations to maintain a “thriving natural ecological balance.” BLM and the Forest Service have to consider mustangs alongside grazing, wildlife and what’s good for the land. Some say the agencies have kicked the can down the road on management of the Montgomery Pass herd.

Hunewill’s family has deep roots in the Eastern Sierra. Her great-great-great-grandfather came to California in the 1860s as a gold miner. He struck it rich, and got into the lumber business. When that stopped paying out, he used his oxen to feed the town of Bodie.

Her family is still in the beef business, with the meat generally staying on the West Coast.

They employ quite a few mustangs at their guest ranch operation in the town of Bridgeport, including Jethro, a friendly brown fella with a splash of white on his forehead. They’re hardy horses, and can be enlisted as pack animals high up in the mountains. Some don’t need shoes because of their “great feet.”

But their robustness means “everybody’s already got their mustang,” she said, stymieing the prospect of mass adoptions.

Shifting dynamics

Wild horse populations can increase as much as 20% a year. Montgomery Pass horses used to summer in the high country and were once kept in check by mountain lions that preyed on foals, according to John Turner, a professor at the University of Toledo College of Medicine, who studied the herd for decades.

That changed around 2008 or 2009, when the horses began lingering at lower elevations, where the open country makes it difficult for lions to hunt.

The herd’s population surged.

Turner sees the government’s current system of rounding up horses and holding them as unsustainable. And costly.

“The gathers are successful at that time, but the reproductive rate of the animals is greater than the capacity to remove them,” he said.

Read the full story here.
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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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