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Sparrow Spared, Cactus Extinct, and More Links From the Brink

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Friday, July 26, 2024

Earlier this month I visited some friends at their home on the banks of the Columbia River — a house that could soon be under the Columbia River due to climate change and sea-level rise. That same week we got news about Hurricane Beryl causing destructive floods around the United States, along with devastating floods in Brazil, India, China, and Kenya. Other floods this month caused destruction and fatalities in Liberia, Afghanistan, Indonesia, and several other U.S. states. Is it any wonder that the sound of dripping water plunges me into a panic attack? Welcome to Links From the Brink. Best News of the Month: When I last wrote about the Florida grasshopper sparrow (Ammodramus savannarum floridanus) in 2018, the critically endangered bird species had experienced a devastating population crash, leaving fewer than 100 individuals in the wild. As one conservationist told me at the time, “This is going to be North America’s next extinct bird if we do nothing.” Well, we did do something. Some of the last birds were brought into captivity before they could die out, and even since then they’ve been breeding like there’s no tomorrow. As a result, they have a tomorrow. This month the Florida Fish and Wildlife Commission and partner organizations released their 1,000th captive-bred grasshopper sparrow into the wild. This seems to indicate that these rare birds have been saved from what just a few years ago seemed like an extinction in the making. There’s a lesson in this amazing milestone: “These little birds represent a big beacon of hope that our commitment, partnership and holistic approach can save vulnerable wildlife from the brink of extinction,” as Fish and Wildlife Foundation of Florida president Andrew Walker told The Guardian. Of course, all the captive breeding in the world can’t save a species if it has nowhere to live. Florida remains one of the most development-hungry places in the United States, and grasshopper sparrows’ habitat still needs protection and restoration. But 1,000 birds in six years is an amazing achievement, and it’s one worthy of celebration and emulation. More Good News That May Have Fallen Through the Cracks: Lynx from the brink: The Iberian lynx (Lynx pardinus), once critically endangered, has recovered thanks to decades of intense conservation effort. The IUCN last month reassessed the species as merely “vulnerable to extinction.” In 2005 the lynx population had fallen to an estimated 84 mature cats; the most recent count put them at a healthy (but still risky) 648. The small predators benefitted from efforts to increase previously overhunted rabbit populations, which, once restored, finally gave the lynx plenty to eat and thrive. The IUCN warns, though, that another rabbit crash, a disease, or high mortality from roads could quickly undo this conservation victory. Wolves: When wolves returned to Washington state in 2008, many hunters bemoaned that white-tail deer populations would suffer. Well, guess what — it didn’t happen. New research shows that wolves have had a minimal effect on deer in the Evergreen State — far below that of cougars (which also get a bad rap in WA) and habitat loss (i.e., development — the bane of communities throughout the West as people flock to this part of the country). Meanwhile Washington rejected a push to remove state endangered-species status for wolves and lowered its previously lax cougar-hunting quotas to more sustainable levels. Conservationists praised both decisions. We imagine wolves and mountain lions were pretty happy, too. Europe: After two years of debate, the European Union passed its Nature Restoration Law last month — which, according to news site Euractiv, “will set legally binding targets to restore 20% of the EU’s degraded land and sea ecosystems by 2030 and all ecosystems by 2050.” The bill got watered down a bit (farmers get a bit of a pass), but this seems like a good model for other 30×30 goals. (Speaking of which, six years is still a pretty tight deadline … ) Sued: A new report finds that the number of companies facing climate-related lawsuits keeps rising dramatically — and that most of these corporations are losing in court. Most of the recent lawsuits target so-called “climate-washing” — a willful misrepresentation of their progress toward promised climate goals. (The lessons: Lies cost you $$$.) Fined: More losing: Marathon Oil just got socked with a $64.5 million fine for Clean Air Act violations at the Fort Berhold Indian Reservation in North Dakota, in the heart of the Bakken shale oil fields. The company must also pay another $177 million toward reducing its future emissions. General Motors, meanwhile, must pony up $146 million in fines because its vehicles emitted at least 10% more carbon dioxide than their compliance reports claimed. (Either of these items could actually go in the “bad news” category, since the spewing of greenhouse gasses and other pollutants went on so long before either company got caught and punished, but we’ll leave them in with the other wins for now as a warning to other gasbag corporations.) Fined, part 2: French regulators this month fined conservative broadcaster CNews €20,000 (about $22,000) for allowing a pundit to spread climate skepticism (aka disinformation) without editorial follow-up or rebuttal. I’ll admit, as an advocate of free speech and the free press, I have doubts about this approach to forcing balance from news outlets. For one thing, it seems the right wing could have weaponized this approach to water down good climate reporting if they’d come to power in France in this month’s narrowly won elections. Still, I’m intrigued and wonder if this could help stem the tide of further disinformation or if it will just cause pundits to double down on their lies. (Probably the latter, alas.) Spa day: “Frog saunas” could help an endangered Australian species, the green and golden bell frog (Ranoidea aurea), recover from the deadly chytrid fungus, which has caused dozens of amphibian extinctions over the past few years. (This technique hasn’t proven helpful for other species, unfortunately.) Frogs enjoy their day in the sun. Photo courtesy Macquarie University Vroom vroom: Another new report finds that rural families are saving thousands of dollars a year with electric vehicles. (Yes, these are the same rural families who many people assumed would resist transitioning away from gas-powered cars, trucks, and farm equipment. Shows what the “experts” know.) Renewables: China is building twice as much renewable energy (specifically wind and solar) as every other country combined. (How do you say “This should light a fire under everyone else’s ass” in a carbon-neutral manner?) (Seriously though, I don’t want to blindly praise China for this; its environmental record is terrible. But so is ours, so c’mon folks, catch up.) And finally, a peak: Even fossil-fuel companies predict the world will hit peak oil demand next year. They see the writing on the wall (and the lawsuits in the wings?). Worst News of the Month: Getting back to that theme of flooding, the United States just lost its first species due to sea-level rise: the Key Largo tree cactus (Pilosocereus millspaughii). Despite its geographically based monicker, this rare cactus grows on a handful of scattered islands in the Caribbean. But it’s no longer found in its namesake Key Largo — storm surges inundated the limestone outcrop where it once grew, increasing salt levels beyond what the plants could tolerate. The storms also washed away a lot of soil, which is kind of a basic need for plants. It wasn’t just the salt water that caused problems. These cacti stored fresh water in their bodies, which then became a source of hydration for thirsty animals when the coasts became inundated with undrinkable sea water. The cactus declined quickly amidst this one-two-three punch. In 2021 the Key Largo population — previously described as “thriving” — had deteriorated to just six stands. This month scientists announced that even those last individuals had disappeared. But the species still exists on other islands, and scientists harvested the last Key Largo plants’ flowers and fruits in 2021 to cultivate them in a greenhouse setting. So far they’re doing fine, but the chance of replanting them in their native habitat appears slim. This isn’t a full-on species extinction, but it is a local extinction caused by sea-level rise, the first of its kind identified to date in the United States. And it could be a portent of things to come, as botanist Jennifer Possley said in a press release: “Unfortunately, the Key Largo tree cactus may be a bellwether for how other low-lying coastal plants will respond to climate change.” That said, I’m going to nudge this back into the “kinda-good” category, because at least scientists recognized the problem in time, saved what they could, and took the opportunity to warn us about future threats. That’s the type of proactive conservation that we should all aspire to and celebrate, even if it’s a part of the ongoing extinction crisis. Bad News Quick Hits: (Sorry. Let’s not dwell, but let’s not look away, either.) Chevron The Supreme Court in general Fiberglass in oysters and mussels 10.3 billion people by 2084? Protestors jailed Bitcoin = crashed power grids? The last ‘akikiki? (This breaks my heart.) Coal consumption could go up next year? Quote of the Month: “Inside your trash can is the possibility to change the world if you apply some creativity and some love. All trash is treasure.” — Troll artist Thomas Dambo, in The Washington Post   View this post on Instagram   A post shared by Thomas Dambo (@thomasdambo) That’s it for this edition of Links From the Brink. We’ll be back in a month or two with another roundup of under-the-radar news stories. Until then, keep an eye on the 2024 election, watch out for heat waves and wildfire smoke (not to mention floods), and check in on your neighbors in need (both human and wild). Meanwhile, mark your calendars for International Owl Awareness Day on Aug. 4, World Krill Day on Aug. 11, Panamanian Golden Frog Day on Aug. 14, and (my favorite) International Orangutan Day on Aug. 19. What will you be watching in the months ahead? Scroll down to find our “Republish” button The post Sparrow Spared, Cactus Extinct, and More Links From the Brink appeared first on The Revelator.

This month’s best and worst environmental stories also include a rebounding lynx, a climate lawsuit boom, and a spa for frogs. The post Sparrow Spared, Cactus Extinct, and More Links From the Brink appeared first on The Revelator.

Earlier this month I visited some friends at their home on the banks of the Columbia River — a house that could soon be under the Columbia River due to climate change and sea-level rise.

That same week we got news about Hurricane Beryl causing destructive floods around the United States, along with devastating floods in Brazil, India, China, and Kenya. Other floods this month caused destruction and fatalities in Liberia, Afghanistan, Indonesia, and several other U.S. states.

Is it any wonder that the sound of dripping water plunges me into a panic attack?

Welcome to Links From the Brink.

Best News of the Month:

When I last wrote about the Florida grasshopper sparrow (Ammodramus savannarum floridanus) in 2018, the critically endangered bird species had experienced a devastating population crash, leaving fewer than 100 individuals in the wild. As one conservationist told me at the time, “This is going to be North America’s next extinct bird if we do nothing.”

Well, we did do something. Some of the last birds were brought into captivity before they could die out, and even since then they’ve been breeding like there’s no tomorrow. As a result, they have a tomorrow. This month the Florida Fish and Wildlife Commission and partner organizations released their 1,000th captive-bred grasshopper sparrow into the wild. This seems to indicate that these rare birds have been saved from what just a few years ago seemed like an extinction in the making.

There’s a lesson in this amazing milestone: “These little birds represent a big beacon of hope that our commitment, partnership and holistic approach can save vulnerable wildlife from the brink of extinction,” as Fish and Wildlife Foundation of Florida president Andrew Walker told The Guardian.

Of course, all the captive breeding in the world can’t save a species if it has nowhere to live. Florida remains one of the most development-hungry places in the United States, and grasshopper sparrows’ habitat still needs protection and restoration. But 1,000 birds in six years is an amazing achievement, and it’s one worthy of celebration and emulation.

More Good News That May Have Fallen Through the Cracks:

Lynx from the brink: The Iberian lynx (Lynx pardinus), once critically endangered, has recovered thanks to decades of intense conservation effort. The IUCN last month reassessed the species as merely “vulnerable to extinction.” In 2005 the lynx population had fallen to an estimated 84 mature cats; the most recent count put them at a healthy (but still risky) 648.

Iberian lynx

The small predators benefitted from efforts to increase previously overhunted rabbit populations, which, once restored, finally gave the lynx plenty to eat and thrive. The IUCN warns, though, that another rabbit crash, a disease, or high mortality from roads could quickly undo this conservation victory.

Wolves: When wolves returned to Washington state in 2008, many hunters bemoaned that white-tail deer populations would suffer. Well, guess what — it didn’t happen. New research shows that wolves have had a minimal effect on deer in the Evergreen State — far below that of cougars (which also get a bad rap in WA) and habitat loss (i.e., development — the bane of communities throughout the West as people flock to this part of the country).

Meanwhile Washington rejected a push to remove state endangered-species status for wolves and lowered its previously lax cougar-hunting quotas to more sustainable levels. Conservationists praised both decisions. We imagine wolves and mountain lions were pretty happy, too.

Europe: After two years of debate, the European Union passed its Nature Restoration Law last month — which, according to news site Euractiv, “will set legally binding targets to restore 20% of the EU’s degraded land and sea ecosystems by 2030 and all ecosystems by 2050.” The bill got watered down a bit (farmers get a bit of a pass), but this seems like a good model for other 30×30 goals. (Speaking of which, six years is still a pretty tight deadline … )

Sued: A new report finds that the number of companies facing climate-related lawsuits keeps rising dramatically — and that most of these corporations are losing in court. Most of the recent lawsuits target so-called “climate-washing” — a willful misrepresentation of their progress toward promised climate goals. (The lessons: Lies cost you $$$.)

Fined: More losing: Marathon Oil just got socked with a $64.5 million fine for Clean Air Act violations at the Fort Berhold Indian Reservation in North Dakota, in the heart of the Bakken shale oil fields. The company must also pay another $177 million toward reducing its future emissions. General Motors, meanwhile, must pony up $146 million in fines because its vehicles emitted at least 10% more carbon dioxide than their compliance reports claimed. (Either of these items could actually go in the “bad news” category, since the spewing of greenhouse gasses and other pollutants went on so long before either company got caught and punished, but we’ll leave them in with the other wins for now as a warning to other gasbag corporations.)

Fined, part 2: French regulators this month fined conservative broadcaster CNews €20,000 (about $22,000) for allowing a pundit to spread climate skepticism (aka disinformation) without editorial follow-up or rebuttal.

I’ll admit, as an advocate of free speech and the free press, I have doubts about this approach to forcing balance from news outlets. For one thing, it seems the right wing could have weaponized this approach to water down good climate reporting if they’d come to power in France in this month’s narrowly won elections. Still, I’m intrigued and wonder if this could help stem the tide of further disinformation or if it will just cause pundits to double down on their lies. (Probably the latter, alas.)

Spa day:Frog saunas” could help an endangered Australian species, the green and golden bell frog (Ranoidea aurea), recover from the deadly chytrid fungus, which has caused dozens of amphibian extinctions over the past few years. (This technique hasn’t proven helpful for other species, unfortunately.)

Frogs poke out of the holes in a wall of bricks
Frogs enjoy their day in the sun. Photo courtesy Macquarie University

Vroom vroom: Another new report finds that rural families are saving thousands of dollars a year with electric vehicles. (Yes, these are the same rural families who many people assumed would resist transitioning away from gas-powered cars, trucks, and farm equipment. Shows what the “experts” know.)

Renewables: China is building twice as much renewable energy (specifically wind and solar) as every other country combined. (How do you say “This should light a fire under everyone else’s ass” in a carbon-neutral manner?)

(Seriously though, I don’t want to blindly praise China for this; its environmental record is terrible. But so is ours, so c’mon folks, catch up.)

And finally, a peak: Even fossil-fuel companies predict the world will hit peak oil demand next year. They see the writing on the wall (and the lawsuits in the wings?).

Worst News of the Month:

Getting back to that theme of flooding, the United States just lost its first species due to sea-level rise: the Key Largo tree cactus (Pilosocereus millspaughii).

Despite its geographically based monicker, this rare cactus grows on a handful of scattered islands in the Caribbean. But it’s no longer found in its namesake Key Largo — storm surges inundated the limestone outcrop where it once grew, increasing salt levels beyond what the plants could tolerate. The storms also washed away a lot of soil, which is kind of a basic need for plants.

It wasn’t just the salt water that caused problems. These cacti stored fresh water in their bodies, which then became a source of hydration for thirsty animals when the coasts became inundated with undrinkable sea water.

The cactus declined quickly amidst this one-two-three punch. In 2021 the Key Largo population — previously described as “thriving” — had deteriorated to just six stands. This month scientists announced that even those last individuals had disappeared.

But the species still exists on other islands, and scientists harvested the last Key Largo plants’ flowers and fruits in 2021 to cultivate them in a greenhouse setting. So far they’re doing fine, but the chance of replanting them in their native habitat appears slim.

This isn’t a full-on species extinction, but it is a local extinction caused by sea-level rise, the first of its kind identified to date in the United States. And it could be a portent of things to come, as botanist Jennifer Possley said in a press release: “Unfortunately, the Key Largo tree cactus may be a bellwether for how other low-lying coastal plants will respond to climate change.”

That said, I’m going to nudge this back into the “kinda-good” category, because at least scientists recognized the problem in time, saved what they could, and took the opportunity to warn us about future threats. That’s the type of proactive conservation that we should all aspire to and celebrate, even if it’s a part of the ongoing extinction crisis.

Bad News Quick Hits:

(Sorry. Let’s not dwell, but let’s not look away, either.)

Quote of the Month:

“Inside your trash can is the possibility to change the world if you apply some creativity and some love. All trash is treasure.” — Troll artist Thomas Dambo, in The Washington Post

 

View this post on Instagram

 

A post shared by Thomas Dambo (@thomasdambo)


That’s it for this edition of Links From the Brink. We’ll be back in a month or two with another roundup of under-the-radar news stories. Until then, keep an eye on the 2024 election, watch out for heat waves and wildfire smoke (not to mention floods), and check in on your neighbors in need (both human and wild).

Meanwhile, mark your calendars for International Owl Awareness Day on Aug. 4, World Krill Day on Aug. 11, Panamanian Golden Frog Day on Aug. 14, and (my favorite) International Orangutan Day on Aug. 19.

What will you be watching in the months ahead?

Scroll down to find our “Republish” button

The post Sparrow Spared, Cactus Extinct, and More Links From the Brink appeared first on The Revelator.

Read the full story here.
Photos courtesy of

Giant prehistoric kangaroos preferred to ‘chill at home’ and didn’t like to go out much, scientists say

Fossil teeth show species of protemnodon that roamed Australia between 5m and 40,000 years ago lived and died near Queensland cavesGet our afternoon election email, free app or daily news podcastDespite their immense size, species of prehistoric giant kangaroos from a site in Queensland were probably homebodies with a surprisingly small range compared to other kangaroos, according to new Australian research.Protemnodon, which roamed the Australian continent between 5m and 40,000 years ago and is now extinct, was significantly larger than its modern relatives. Some species weighed up to 170kg, making them more than twice as heavy as the largest red kangaroo. Continue reading...

Despite their immense size, species of prehistoric giant kangaroos from a site in Queensland were probably homebodies with a surprisingly small range compared to other kangaroos, according to new Australian research.Protemnodon, which roamed the Australian continent between 5m and 40,000 years ago and is now extinct, was significantly larger than its modern relatives. Some species weighed up to 170kg, making them more than twice as heavy as the largest red kangaroo.Given their size, researchers expected they might have an expansive territory, said University of Wollongong palaeo-ecologist Chris Laurikainen Gaete, the co-author of the study published in PLOS One.That’s because in most modern plant-eating mammals, including kangaroos and other macropods, larger body size correlated with geographic range, he said. A small marsupial such as the pademelon, for example, occupies an area smaller than a kilometre squared, whereas the red kangaroo – the largest of all kinds – in outback Australia can hop long distances, sometimes further than 20km.But analysis of fossil teeth found near Mt Etna, 30km north of Rockhampton in Queensland, revealed something quite different. These protemnodon kept to close quarters, living and dying near the caves where their remains were found.The Mt Etna fossil site in Queensland. Protemnodon’s restricted range increased its risk of extinction amid a changing climate, an expert says. Photograph: Scott HocknullCo-author Dr Scott Hocknull, a vertebrate palaeontologist and senior curator at the Queensland Museum, said the individuals from Mt Etna seemed to be “real homebodies” that stayed within “a tiny pocket” in and around the limestone caves.“These gigantic kangaroos were just chilling at home, eating the rainforest leaves, because there were heaps of them around. That also means that the environment was quite stable. It meant that over hundreds of thousands of years, these animals decided that staying put was a good bet.”The population at Mt Etna was “probably quite happy” for some time, Hocknull said. The rainforest probably provided a reliable source of food, while the caves offered protection from prehistoric predators, such as marsupial lions.But their restricted range was a “bad bet” in the end, Hocknull said, because it pre-disposed them to a risk of extinction when a changing climate and increasing aridity disrupted the rainforest environment about 280,000 years ago.Dr Scott Hocknull of the Queensland Museum with a protemnodon skull fossil. The prehistoric kangaroos were ‘real homebodies’, he saysDr Isaac Kerr, who specialises in kangaroo palaeontology at Flinders University and was not involved with the study, said protemnodon fossils – found mainly in the south and east of the country – indicated there were several species adapted to different environments.“Probably they were all over the whole continent, including New Guinea,” he said. A site in Tasmania had one of the latest surviving species, dated to 41,000 years ago.skip past newsletter promotionSign up to Afternoon Update: Election 2025Our Australian afternoon update breaks down the key election campaign stories of the day, telling you what’s happening and why it mattersPrivacy Notice: Newsletters may contain info about charities, online ads, and content funded by outside parties. For more information see our Privacy Policy. We use Google reCaptcha to protect our website and the Google Privacy Policy and Terms of Service apply.after newsletter promotionKerr said these megafauna kangaroos ranged in size but were generally stockier than their modern counterparts, with shorter feet.Protemnodon probably looked something like a wallaroo, he said, “squat and muscular but still quite large compared to a modern kangaroo”.Mt Etna is one of Australia’s richest fossil sites, containing evidence of ancient Pleistocene rainforests and records covering periods of past environmental change when rainforests gave way to open, arid environments.The researchers’ next step was to apply similar techniques to fossils of smaller kangaroos such as tree kangaroos, pademelons and rock wallabies from Mt Etna, which still have living descendants, to understand how they survived the environmental changes while protemnodon died out.Palaeo-ecologist Chris Laurikainen Gaete says that with most modern plant-eating mammals, larger body size correlates with larger geographic range – but not for the protemnodon found at Mt EtnaThe study compared the unique chemical signatures found in the local geology with those found in the fossilised teeth to establish the range of each animal, Gaete said.“Strontium is an element that varies in the environment, specifically in underlying bedrocks – so a limestone will have a significantly different strontium signature compared to something like volcanic rock or basalt,” he said. These unique signatures made their way into soil and plants, and were reflected in the fossilised teeth of herbivores that ate those plants.Laurikainen Gaete said the technique could be used to understand, on a site-by-site basis, why certain species of megafauna disappeared from particular places.Hocknull said: “It fundamentally shifts how palaeontologists and ecologists look at the fossil record.”

Sunscreen, Clothing and Caves May Have Given Modern Humans an Edge Over Neanderthals When Earth's Magnetic Field Wandered

A new study suggests the extinction of Neanderthals nearly coincided with a shift in Earth's magnetic field that let more radiation reach the ground. Our species might have adapted more easily

Sunscreen, Clothing and Caves May Have Given Modern Humans an Edge Over Neanderthals When Earth’s Magnetic Field Wandered A new study suggests the extinction of Neanderthals nearly coincided with a shift in Earth’s magnetic field that let more radiation reach the ground. Our species might have adapted more easily A reconstruction of a Neanderthal man in the Natural History Museum, Vienna. A new study suggests Neanderthals could not adapt to a period of increased radiation as well as early modern humans did. Jakub Hałun via Wikimedia Commons under CC BY-SA 4.0 One of the most enduring questions in anthropology is why Neanderthals, our closest extinct human relatives, completely disappeared around 40,000 years ago. Possible theories include climate change, resource competition and the dilution of Neanderthals’ genes through interbreeding with modern humans’ ancestors. Now, new research suggests early Homo sapiens may have had an edge on their cousins thanks to their use of sun protection—namely, natural sunscreen, tailored clothes and caves—during a period of unusually strong solar and cosmic radiation. The research is detailed in a study published last week in the journal Science Advances. Earth’s moving interior generates our planet’s magnetic field, an invisible shield that helps protect us and our atmosphere from harmful energy coming from space. This magnetic field has a north and south orientation, which currently roughly aligns with Earth’s North and South poles. Those are the sites where the field is the strongest, which is why auroras are usually visible at more extreme latitudes. Sometimes, however, the magnetic field’s poles wander from the planet’s geographic poles in what scientists call geomagnetic excursions, according to a statement. Occasionally, the magnetic field’s north and south poles swap completely—a natural phenomenon that has taken place about 180 times in Earth’s history. The most recent geomagnetic excursion, called the Laschamps excursion, occurred around 41,000 years ago—just before Neanderthals went extinct. To investigate this event for the new study, an international team of researchers reconstructed Earth’s upper atmosphere and nearby space during the Laschamps excursion using a 3D computer model. By combining this with models of the space plasma around Earth and our planet’s auroras, the team suggests that during the Laschamps excursion, Earth’s magnetic field overall was only 10 percent as strong as its current level. This allowed the north magnetic pole to wander over Europe, making aurora visible across the continent. It also let more cosmic radiation reach the ground. A diagram of the Laschamps excursion. At this time, auroras—depicted here by gradients of green and yellow—could be seen from most of the globe. Agnit Mukhopadhyay, University of Michigan “During the Laschamps event, the magnetic poles shifted away from true north,” lead author Agnit Mukhopadhyay, a climate and space scientist at the University of Michigan, tells BBC Science Focus’ Hatty Willmoth. “This movement, coupled with a notable weakening of the magnetic field, resulted in an expanded auroral zone and increased atmospheric penetration by energetic particles, such as solar energetic particles and cosmic radiation.” Both of those particles represent ionizing radiation, which can be harmful to human health. Interestingly, the Laschamps excursion coincided with notable developments for our ancestors and early relatives. According to the statement, some evidence suggests Homo sapiens started producing custom clothing, spending more time in caves and increasing their use of a mineral called ochre at that time. “There have been some experimental tests that show it [ochre] has sunscreen-like properties. It’s a pretty effective sunscreen, and there are also ethnographic populations that have used it primarily for that purpose,” Raven Garvey, a co-author of the study and an anthropologist at the University of Michigan, says in the statement. “So, while archaeologists cannot directly observe the behaviors of peoples who lived over 40,000 years ago, we can hypothesize that the increased use of ochre may have been, in part, for its sun-protective properties,” Garvey adds to BBC Science Focus. Environmental changes caused by the weaker magnetic field “may have driven adaptive behaviors in human populations, such as the increased use of protective clothing and ochre for UV shielding,” as Mukhopadhyay tells New Scientist’s James Woodford. But as early modern humans made these lifestyle changes, Neanderthals ultimately disappeared. The team speculates these differences may have contributed to Homo sapiens outliving Neanderthals, who don’t seem to be associated with the same developments. Not everyone agrees, however. “There’s definitely a rough overlap in terms of timing between the incursion of ancient modern humans into Europe and the Laschamps event,” says Amy Mosig Way, an archaeologist from the Australian Museum who was not involved in the study, to New Scientist. “But it’s probably a stretch to say modern humans had better sun protection in the form of tailored clothing than Neanderthals, and that this contributed to their ability to travel farther than Neanderthals and their subsequent dominance of Eurasia.” More broadly, the researchers suggest that our ancestors’ survival of a severely weakened magnetic sphere could hold implications for how we continue our search for extraterrestrial beings. “Many people say that a planet cannot sustain life without a strong magnetic field,” Mukhopadhyay says in the statement. “Looking at prehistoric Earth, and especially at events like this, helps us study exoplanetary physics from a very different vantage point. Life did exist back then. But it was a little bit different than it is today.” Get the latest stories in your inbox every weekday.

Environmentalists sue Trump administration to save ‘unique amphibian’ at Crater Lake

Warming waters, an invasive fish and federal budget cuts are threatening the cute little creature.

A “cute little newt” has found itself in the middle of a fight between a leading environmental organization and the Trump administration.The Center for Biological Diversity on Thursday announced its intention to file a lawsuit over the U.S. Fish and Wildlife Service’s failure to protect the Crater Lake newt, also known as the Mazama newt, which the environmental organization said is “critically imperiled.”In October, the U.S. Fish and Wildlife Service announced it was considering listing the newt as a threatened or endangered species, following a petition by the Center for Biological Diversity. The federal agency said the listing would be fully considered in a 12-month evaluation, but since then the agency has faced a series of firings and budget cuts as part of the Trump administration’s sweeping cuts to the federal government. Those cuts will make it harder to protect the newt, which is currently threatened by invasive crayfish that prey on the little amphibian, the Center for Biological Diversity said.“Crater Lake newts are unique little amphibians on the brink of extinction and urgent action is needed for them to have any chance of survival,” Chelsea Stewart-Fusek, an endangered species attorney with the organization, said in a news release. “We’re at the point where newts may need to be bred in captivity until the explosion of crayfish can be addressed. The longer the government waits, the harder it’ll be for these irreplaceable amphibians to recover.”If listed as an endangered species, the newt may benefit from federal funds that could help with crayfish removal and a captive breeding program, Stewart-Frisk said. The demise of the Crater Lake newt, which is a subspecies of the rough-skinned newt, has accelerated in the last 15 years as warming temperatures favor its predator, the signal crayfish, which was introduced to the park in the late 1800s as a way to attract visitors and gain federal protection as a national park – a plan that ultimately worked. Crayfish now occupy more than 95% of the lake’s shoreline, according to the Center for Biological Diversity, and scientists project they could occupy 100% in less than two years. That could threaten not only the newts, but the crystal blue clarity of Crater Lake itself, as the crayfish also prey on native plankton-consuming invertebrates, increasing the growth of algae in the lake, the organization said. “Amphibians act as canaries in the coal mine, and right now more than 40% of the world’s amphibians are at risk of extinction,” Stewart-Fusek said. “This is a grave warning that should be taken seriously. What harms wildlife and their habitat endangers us, too.”--Jamie Hale covers travel and the outdoors and co-hosts the Peak Northwest podcast. Reach him at 503-294-4077, jhale@oregonian.com or @HaleJamesB.Our journalism needs your support. Subscribe today to OregonLive.com.

Scientists say they 'de-extincted' dire wolves. Experts at La Brea Tar Pits are skeptical

Colossal Biosciences, the company that made headlines years back for claims they wanted to revive the woolly mammoth, say they successfully "de-extincted" the dire wolf. Local experts are not so sure.

When news that scientists in Texas had succesfully reintroduced the long-extinct dire wolf to the modern world, more people than just “Game of Thrones” fans took notice.Researchers at the Natural History Museum’s La Brea Tar Pits, where a wall is decorated with hundreds of dire wolf skulls, had questions.Namely, are they really dire wolves? Turns out, it depends on how you define it.“What they have created is basically a genetically engineered gray wolf that has been given genetic traits so they can express morphological or physical traits that more resemble dire wolves,” said Kayce Bell, a terrestrial mammal curator at the Natural History Museum. “The technology and the tools that they are developing with this work are incredible and very powerful, but the terms that are being used to discuss it, I think, are misleading.”Earlier this week, biotechnology company Colossal Biosciences in Dallas announced they had “de-extincted” the dire wolf, sharing the news of the births of three healthy pups. Over 18 months, experts there extracted and sequenced ancient DNA from two dire wolf fossils — a 13,000-year-old tooth from Sheridan Pit, Ohio, and a 72,000-year-old inner ear bone from American Falls, Idaho. With that ancient DNA, scientists identified gene variants specific to dire wolves and then performed multiplex gene editing with a genome from the gray wolf, dire wolves’ closest living relatives. They used domestic dogs as surrogate mothers to birth the three pups. This undated photo provided by Colossal Biosciences shows two pups that were genetically engineered with similarities to the extinct dire wolf. (Colossal Biosciences via Associated Press) Colossal’s chief science officer, Beth Shapiro, said she understands the scientific skepticism that came with the announcement. “I get it,” she said. “It’s frustrating when you work in paleontology and you feel like it’s not effective science communication, and I wish I’d done a bit better.”Though Southern California has a jackpot of dire wolf fossils relative to other sites, extracting DNA from the local samples is difficult. Shapiro said she’s been trying and unable to collect DNA from local samples for 20 years. Among the reasons it’s challenging to collect, experts say, is that L.A.’s urban landscape bakes in the sun, heating up the asphalt, which could degrade ancient DNA buried underneath.La Brea Tar Pits has the highest concentration of dire wolf fossils in the world, with remains from over 4,000 dire wolves found at the site. They lived in the region for at least 50,000 years, disappearing about 13,000 years ago.“There’s no other site on Earth that even comes close to that,” said Emily Lindsey, the associate curator and excavation site director at La Brea Tar Pits.Dire wolves, native to Southern California but not limited to the region, were highly adaptable and had a very wide range of environmental tolerances before the species went extinct about 10,000 years ago, Lindsey said. The three pups — Romulus and Remus, who were born in October, and Khaleesi, born in January — now live on an ecological preserve at an undisclosed location that spans over 2,000 acres and hosts 10 full-time staff members who care for and observe them. The preserve is certified by the American Humane Society and registered with the U.S. Department of Agriculture.Depending on how you look at it, that could be dire wolf territory now.In 2016, the International Union for Conservation of Nature published a report that focused on de-extinction and defined it as “bringing back a proxy of an extinct species that resembles it in some way, phenotypically, physiologically, ecologically,” Shapiro said.But in the end, she said she’s not really hung up on what the animals are called beyond their names, inspired by founders of Rome and the “Game of Thrones” show.“Call it a de-extinct dire wolf that abides by the definition that the scientific community agreed on 10 years ago. Call it Colossal’s dire wolf. Call it a gray wolf with 20 edits that looks and acts like a dire wolf and is a functional replacement for a dire wolf,” Shapiro said.Part of Colossal’s announcement this week included news that they had also successfully created four clones of the endangered red wolf using a new noninvasive cloning technology. Both Lindsey and Bell said they appreciated Colossal’s work on conserving endangered species, but think that focusing on conservation is a more productive use of resources. “There are potentially useful applications of some of these technologies, particularly for preventing highly endangered species from going extinct. I think that would be a far more efficient application of these technologies than trying to bring something resembling an extinct species back to life,” Lindsey said. “I’d hate to have to be trying to de-extinct wolves once they go extinct, right?”Colossal’s Chief Executive Ben Lamm said the company wants to pair their “de-extinction events” with work they’re doing to protect critically endangered species. The company’s other de-extinction hopes include reviving the woolly mammoth, the dodo, and the thylacine, or Tasmanian tiger. To Lamm and Shapiro, de-extinction and conservation can work in tandem.“Conservation and de-extinction are not at odds with each other. The de-extinction toolkit should be part of the increasing number of ways that we have at our fingertips to be able to help endangered species survive,” Shapiro said.Lamm, who held up drawings of dodos and other extinct animals children had sent to the Colossal team during a Zoom interview with The Times, said he thinks the milestone could also inspire more people to pursue careers in related fields.“The world needs a little hope right now, and I think the world needs more science. Hopefully, we’re providing a little bit of both,” he said.And yes, of course “Jurassic Park” quotes and references are tossed Lamm and Shapiro’s way with stunning frequency.“People actually say to us, ‘Don’t you know what happened in Jurassic Park?,’ equating it to, like, Chernobyl,” Lamm said. “ ‘Didn’t you see what happened there?’ Not, ‘Didn’t you watch the movie and learn anything about human hubris from the movie?’ They don’t say that.”Shapiro added: “People are yelling at us that these aren’t real dire wolves. But no one has ever questioned whether the dinosaurs in ‘Jurassic Park’ are real dinosaurs.”While the debate is still open, Lindsey said she invites anyone curious about the creatures to visit La Brea Tar Pits to see some of the “real dire wolves” that they have excavated at the site. “It’s a really cool opportunity — one that you don’t get in almost any other city in the world — to come and really see the incredible diversity of large animals that lived here until very recently,” Lindsey said.

You Might Think of Shrimp as Bugs of the Sea. But a Remarkable Discovery Shows the Opposite: Bugs Are Actually Shrimp of the Land

A recent study suggests that insects branched out from crustaceans on the tree of life

You Might Think of Shrimp as Bugs of the Sea. But a Remarkable Discovery Shows the Opposite: Bugs Are Actually Shrimp of the Land A recent study suggests that insects branched out from crustaceans on the tree of life Riley Black - Science Correspondent April 9, 2025 8:00 a.m. A species of remipede known from the Caicos Islands. The photograph was taken by a member of a multinational team looking for rare species. Remipedes are crustaceans that are close relatives to insects. Jørgen Olesen / Natural History Museum of Denmark, Brett Gonzalez, Karen Osborn, GGI Shrimp look an awful lot like bugs. The exoskeletons, jointed legs and compound eyes of both groups of living things give them more than a passing resemblance to each other, so no wonder some people call shrimp-like crawfish “mudbugs,” and a tattoo reading “shrimps is bugs” became a viral meme for underscoring the resemblance. But the tattoo got the reality backwards. Shrimp are not bugs. Bugs—or, more properly, insects—are technically a form of crustacean. Biologists of many different subdisciplines categorize life in a field called systematics. Living things of all sorts, both extant and extinct, are constantly being compared and evaluated to build what we so commonly think of as the tree of life. The addition of new species and novel analyses are constantly reshaping that evolutionary tree, and sometimes the category changes shift more than just a few twigs but entire evolutionary branches. Birds are now known to be dinosaurs, for example, whales are technically hoofed mammals called artiodactyls, and, thanks to a 2023 study in Molecular Biology and Evolution, insects have been shifted into the same group as shrimp and crabs called pancrustacea. The realization that bugs were close relatives of crustaceans took almost a century of curiosity to uncover. Paleontologist Joanna Wolfe of Harvard University, one of the authors of the 2023 study, notes that researchers noticed some insects and crustaceans had the same structures in their eyes and nervous systems. The resemblance could have been the result of convergent evolution, when two groups independently evolve in the same way, and so the idea that insects are modified crustaceans didn’t catch. But the hypothesis didn’t fully go away, either. In 2013, Wolfe and colleagues found that insects were the sister group, or next closest evolutionary relatives, to crustaceans called remipedes—which live in undersea caves and are the only venomous crustaceans. Remipedes were supposed to be oddballs that were shaped in strange ways due to their lives in caves. Now they were coming out as the closest relatives to the flies, mantises, bees and other insects we see around us on land. “At that time, I was shocked and thought there was something wrong with our results,” Wolfe recalls, only to have additional evidence make the connection between insects and crustaceans stronger. The 2023 analysis, based on genetic data, found insects next to remipedes in the middle of the various crustacean subgroups. Specifically, insects fit within a wide group of crustaceans called allotriocarida that not only includes remipedes, but also other unusual groups such as shrimp-like branchiopods and worm-like cephalopods sometimes called “horseshoe shrimp.” To put it another way, insects are to crustaceans as bats are to mammals—a subset that belongs to a broader group despite seeming so different from their closest relatives. Systematic shifts do far more than simply rearrange who’s related to whom. “Systematics allow us to make sense of the complexity of life,” says Smithsonian National Museum of Natural History paleontologist Advait Jukar. “When we recategorize species into new groups we can look at patterns of how that group might be diversifying and the various environmental and ecological factors.” Insects, like those above, fit right in the middle of the broader crustacean family tree. Richard Ross, The Image Bank via Getty Images When birds were recognized as dinosaurs, the change did more than reshuffle their place on the evolutionary tree. “The change showed us how characteristics that we typically associate with birds today, such as feathers, hollow bones and air sacs, were widely found within Dinosauria,” Jukar says. Paleontologists began finding more feathered dinosaurs and dinosaurs with traits previously associated with birds, such as complex systems of air sacs as part of their respiratory systems, once the connection was made. The newly understood relationship between birds and other dinosaurs has allowed experts to better understand why only birds survived the mass extinction of 66 million years ago. Comparisons between birds and bird-like dinosaurs revealed that adaptations for eating seeds and nuts that some birds developed during the Cretaceous allowed them to survive while bird-like raptors perished. The recognition that whales are hoofed mammals occurred around the same time as birds were found to be dinosaurs. The shift had a deep effect on how paleontologists carried out their research as well as the identity of the blubbery mammals. Prior to the 1990s, the earliest whales were thought to have evolved from carnivorous mammals called mesonychids. The beasts, sometimes called “wolves with hooves” because they looked like canids with hoof-like toes, were some of Earth’s most prominent carnivores around 55 million years ago, the time when amphibious whales such as Pakicetus began swimming in the shallows. But genetic evidence kept grouping whales close to hippos and other mammals with hoofed toes, called artiodactyls. Experts debated the connection, but by 2001 paleontologists uncovered early whale ankle bones that possessed traits only seen among artiodactyls. The recognition shifted where whales fit in the mammalian evolutionary tree and recalibrated what sort of ancestral creatures paleontologists should be looking for, yielding the 2007 discovery that whales most likely evolved from small, deer-like creatures in ancient India. Without the recognition that whales are artiodactyls, the relevance of those ancient, hoofed creatures to the origin of whales would have been entirely missed and paleontologists would still be wondering where orcas and minke whales came from. In the case of the bugs, Wolfe notes, the recognition that insects shared a close common ancestor with remipedes helps narrow down where and how insects originated. “For me, the exciting part for insects is the recognition that they do not come from a terrestrial ancestor,” Wolfe says. Until recently, the ancestors of insects were thought to be more millipede-like and evolved once invertebrates began to live on land. Now, Wolfe notes, the closest relatives of insects are wiggly crustaceans that live in marine caves. The connection doesn’t mean that remipedes embody the exact ancestral form of the first insects, but rather that their close relationship will cause experts to rethink where insects came from and how they evolved. The effort will require tracing the ancestry of remipedes and other crustaceans, as well as searching for insects in the fossil record—both from new fossil sites and perhaps miscategorized fossils already in collections. “There’s a complicated history and still missing pieces,” she notes, but now biologists have a better sense of what to search for. Bugs are crustaceans, and now experts can begin to wonder how that came to be. Get the latest Science stories in your inbox.

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