Tribes and scientists are mounting an urgent trapping effort to keep European green crabs from devastating a corner of Puget Sound.

© Chona Kasinger for The New York Times

Tribes and scientists are mounting an urgent trapping effort to keep European green crabs from devastating a corner of Puget Sound.

AI leaders worry antitrust law could stand in the way of what they view as an increasingly urgent push to coordinate a slowdown in AI development.

Lipid droplets in the kidneys may help cats maintain a consistent chemical “scent identity.” Scent marks can linger long after an animal has moved on, allowing urine and other chemical signals to carry information across both distance and time. Yet the molecules responsible for odor do not remain unchanged. They evaporate, break down, and shift [...]

“I think that's been the most helpful thing,” says the ESPN journalist. “So there you go, Zoomers. There's a reason to have children.”

GPS collars reveal hyenas retreating while male lions repeatedly close the distance.