How Trump Could Make the Extinction Crisis Even Worse
By Alison Cagle
Despite an alarming UN report that warns one million plant and animal species face extinction due to human activity, the Trump administration is poised to hasten species on their path to extinction by eroding critical wildlife protections. The UN's landmark 1,500-page study, announced this week, warns that if we continue to destroy natural landscapes at rates "unprecedented in human history," massive biodiversity loss will undermine food security, access to clean water and sources of modern medicine by 2050.
The report's findings come amid efforts by the Trump administration to dismantle the most powerful legal tool we have for protecting imperiled wildlife in the U.S.: the Endangered Species Act. The rollbacks, first proposed by Interior Secretary David Bernhardt last summer, would weaken protections that shield the biodiversity the report warns is critical to the survival of all life on Earth.
The administration's move directly contradicts the UN report's conclusion that biodiversity is essential to life as we know it. The proposed changes would incorporate economic considerations into decisions about whether to protect species on the brink of extinction. The proposal also dismantles protections against hunting and trapping for species newly listed as threatened. It also alters the requirement that agencies consult with scientists before approving potentially harmful permits for development, mining, clear-cutting and other destructive activities. These steps follow President Trump's agenda of prioritizing energy dominance and giving handouts to the fossil fuel industry, regardless of the damage to our nation's endangered biodiversity.
"The UN report shows that if we're serious about protecting species not just for their own worth, but in order to save ourselves, we need to increase protections rather than decrease them," said Drew Caputo, Earthjustice vice president of litigation for lands, wildlife and oceans. "The administration's attempt to gut the Endangered Species Act is, as this report shows, a full-speed-ahead course of action in exactly the wrong direction. It's also totally illegal. If they finalize those rollbacks, we'll see them in court."
Drew Caputo, Earthjustice vice president of litigation for lands, wildlife and oceans
Chris Jordan-Bloch / Earthjustice
The Endangered Species Act does more than ensure a legally binding safety net for animals and plants facing extinction. It enshrines in law the principle that economic prosperity cannot come at the cost of conserving our native species and the habitats they depend on. Since its passage in 1973, 99% of the animals protected under the Act have not perished. Those species include the American bald eagle, gray wolf and humpback whales. The Act is also crucial for restoring essential ecosystems: to date, more than 250 million acres of habitat are protected from harm under the law.
Our lawyers use the Endangered Species Act as the legal ground for countless cases to defend wildlife and wild lands, and to work toward securing a healthy environment for all species. Recent examples of how we've used the Endangered Species Act include:
Based on the draft of the Department of the Interior's planned Endangered Species Act rollbacks released last summer, the effect would be to weaken protections for imperiled wildlife and make cases like these harder to bring. Earthjustice attorneys are prepared to rapidly review the final rule when it is released, and are readying to take legal action if required.
By attempting to weaken our strongest wildlife protections, the Trump administration ignores not only scientific projections like the UN report, but also the will of the people: 90% of Americans support the Endangered Species Act. Instead of prioritizing short-term gains for the fossil fuel industry, the administration should heed the science, and reverse its policies on critically endangered species that destroy our planet's biodiversity.
The ghoulishly named ogre-faced spider can "hear" with its legs and use that ability to catch insects flying behind it, the study published in Current Biology Thursday concluded.
"Spiders are sensitive to airborne sound," Cornell professor emeritus Dr. Charles Walcott, who was not involved with the study, told the Cornell Chronicle. "That's the big message really."
The net-casting, ogre-faced spider (Deinopis spinosa) has a unique hunting strategy, as study coauthor Cornell University postdoctoral researcher Jay Stafstrom explained in a video.
They hunt only at night using a special kind of web: an A-shaped frame made from non-sticky silk that supports a fuzzy rectangle that they hold with their front forelegs and use to trap prey.
They do this in two ways. In a maneuver called a "forward strike," they pounce down on prey moving beneath them on the ground. This is enabled by their large eyes — the biggest of any spider. These eyes give them 2,000 times the night vision that we have, Science explained.
But the spiders can also perform a move called the "backward strike," Stafstrom explained, in which they reach their legs behind them and catch insects flying through the air.
"So here comes a flying bug and somehow the spider gets information on the sound direction and its distance. The spiders time the 200-millisecond leap if the fly is within its capture zone – much like an over-the-shoulder catch. The spider gets its prey. They're accurate," coauthor Ronald Hoy, the D & D Joslovitz Merksamer Professor in the Department of Neurobiology and Behavior in the College of Arts and Sciences, told the Cornell Chronicle.
What the researchers wanted to understand was how the spiders could tell what was moving behind them when they have no ears.
It isn't a question of peripheral vision. In a 2016 study, the same team blindfolded the spiders and sent them out to hunt, Science explained. This prevented the spiders from making their forward strikes, but they were still able to catch prey using the backwards strike. The researchers thought the spiders were "hearing" their prey with the sensors on the tips of their legs. All spiders have these sensors, but scientists had previously thought they were only able to detect vibrations through surfaces, not sounds in the air.
To test how well the ogre-faced spiders could actually hear, the researchers conducted a two-part experiment.
First, they inserted electrodes into removed spider legs and into the brains of intact spiders. They put the spiders and the legs into a vibration-proof booth and played sounds from two meters (approximately 6.5 feet) away. The spiders and the legs responded to sounds from 100 hertz to 10,000 hertz.
Next, they played the five sounds that had triggered the biggest response to 25 spiders in the wild and 51 spiders in the lab. More than half the spiders did the "backward strike" move when they heard sounds that have a lower frequency similar to insect wing beats. When the higher frequency sounds were played, the spiders did not move. This suggests the higher frequencies may mimic the sounds of predators like birds.
University of Cincinnati spider behavioral ecologist George Uetz told Science that the results were a "surprise" that indicated science has much to learn about spiders as a whole. Because all spiders have these receptors on their legs, it is possible that all spiders can hear. This theory was first put forward by Walcott 60 years ago, but was dismissed at the time, according to the Cornell Chronicle. But studies of other spiders have turned up further evidence since. A 2016 study found that a kind of jumping spider can pick up sonic vibrations in the air.
"We don't know diddly about spiders," Uetz told Science. "They are much more complex than people ever thought they were."
Learning more provides scientists with an opportunity to study their sensory abilities in order to improve technology like bio-sensors, directional microphones and visual processing algorithms, Stafstrom told CNN.
"The point is any understudied, underappreciated group has fascinating lives, even a yucky spider, and we can learn something from it," he told CNN.
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In 'Road Map for a More Sustainable Future,' NY Regulator Tells Banks to Consider Climate Risks in Planning
By Brett Wilkins
Regulators in New York state announced Thursday that banks and other financial services companies are expected to plan and prepare for risks posed by the climate crisis.
There are many different CBD oil brands in today's market. But, figuring out which brand is the best and which brand has the strongest oil might feel challenging and confusing. Our simple guide to the strongest CBD oils will point you in the right direction.
A NASA spacecraft has successfully collected a sample from the Bennu asteroid more than 200 million miles away from Earth. The samples were safely stored and will be preserved for scientists to study after the spacecraft drops them over the Utah desert in 2023, according to the Associated Press (AP).
Exxon Mobil will lay off an estimated 14,000 workers, about 15% of its global workforce, including 1,900 workers in the U.S., the company announced Thursday.
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