Around 66 million years ago, a six-mile-wide asteroid hit Earth, triggering the extinction of three-quarters of all living ...

Researchers analyzed fossils and DNA to get a big-picture view of sloth evolution and determine what drove their immense size ...

The tough decision of which species to save from extinction Roughly 1 million species of wildlife face extinction worldwide, according to a recent United Nations report. Ecologist and author ...

Thirty-seven wolves died in Washington in 2024, including four killed for preying on livestock, one by a cougar, one dying after ingesting a piece of plastic that perforated its intestine and 18 ...

During the years after the Civil War, America embraced an economic philosophy called laissez-faire, celebrating the notion ...

Species are vanishing around the world and some are disappearing much faster than scientists ever predicted. From frogs in the Appalachians to whales in the Pacific, animals we once thought were safe ...

May 20, 2025 — A novel analysis suggests more than 3,500 animal species are threatened by climate change and also sheds light on huge gaps in fully understanding the risk to the animal ...

Five gray whales have died in the greater Bay Area over the past week, bringing the region's 2025 whale death toll to 14, ...

The Chel snakehead fish, declared extinct since 1933, reappeared in a Himalayan river, highlighting the resilience of ...

There was a buzz in the air Friday in northwestern Washington state as about 250 million honeybees escaped a commercial truck that overturned. The truck hauling an estimated 70,000 pounds of honeybee ...

Given their abundance in American backyards, gardens and highway corridors these days, it may be surprising to learn that ...