Species Watch

Where are South America’s bush dogs? A scientist looks to a Chesapeake Bay retriever for answers.

Scientists turn to eDNA to unlock the secrets of one of Australia’s most ancient animals—whose future may be going under.

In their native habitat in the Pacific Northwest, these imperiled fish are important ecosystem engineers and food web heroes—despite their bloodsucking lifestyle.

As dams have popped up in the Yangtze River, one of the world’s biggest freshwater fish is running out of room—and time.

After a rare shark bite takes a life, some in this beach region want to go after the seals.

Arachnids—even large and aggressive ones like Sri Lanka’s tiger spiders—are important predators keeping ecosystems in check.

Gold mining, fires, and farming have these gorgeous little birds teetering on the edge of extinction.

A new study of critically endangered birds finds a “wave of extinctions washing over the continents.”

I released Misty the Chinese water dragon into the Pennsylvania wild—but don’t be like me. There are other options.

Conservationists and ranchers are teaming up to drain the swamp (literally) so they can kick these invasive croakers out and save the state’s leopard frogs.