A new report from the World Wildlife Fund and the Zoological Society of London analyzed years of data on wildlife populations across the world and found a downward trend in the Earth's biodiversity.

A recent stranding on remote New Zealand islands left nearly 500 pilot whales dead. Scientists still don't know for sure why the events, also known as beachings, occur, but they have some ideas.

In An Immense World, science writer Ed Yong explores the diversity of perception in the animal world — including echolocation, magnetic fields and ultraviolet vision. Originally broadcast June 2022.

The whales beached themselves on the Chatham Islands, about 500 miles east of New Zealand's main islands. None of the whales could be refloated and all either died naturally or were euthanized.

Cankerworms and hackberry leafrollers are feasting on foliage and leaving yards in the Dallas-Fort Worth area covered in silk. Scientists attribute the outbreak to recent heavy rains.

Fat Bear Week is officially back. This year's chunks include defending champ Otis — and a mother bear named Holly, known for adopting orphaned cubs.

Scientists have made a drug based on LSD that seems to fight depression without producing a psychedelic experience.

The snail darter, a tiny Southeastern fish that derailed a federal dam during an epic battle over Endangered Species Act protection in the '70s, is no longer considered imperiled, officials announced.

A shelter run by the Humane Society Naples is flying cats and dogs out of state to make room for a wave of new arrivals from families whose homes were destroyed and are now unable to care for a pet.

The Indian narrow-headed softshell turtle is considered endangered. The zoo is the first accredited organization in North America to hatch and raise the species that's native to South Asia.

Wild boars have a reputation for destruction, but farmer Friedrich Stapel told a news agency that he can't bear to chase away the piglet, which he's named Frieda. It'll winter with his mother cows.

"The loss of nature and rising water insecurity are global health threats that must be confronted together," Secretary of State Antony Blinken said.

Students in metro Atlanta schools get the chance to mingle with barnyard animals and learn about food production as part of a new USDA initiative to get young Georgians interested in agriculture.

Throwing thousands of baby puffins off a cliff is a yearly tradition for the people of Iceland's Westman Islands. It's part of what's known as "puffling season" and is a crucial life-saving endeavor.

NPR's Scott Simon has worms. Hundreds of them. They live in a bin on his balcony and rejuvenate soil for flowers and vegetables. He talks about his admiration for the squiggly things.