Endangered Species Act

Proposed changes to the landmark legislation would limit protections for the thousands of endangered plants and animals covered under the law.

• By Emily Moon

Fifty years ago, the first species gained official federal protection as endangered. Those protections are now in danger.

• By Ben Ikenson

Yellowstone’s grizzly bears are spreading out and expanding their range. Is it a sign of good health—or increasing desperation?

• By Alexis Sobel Fitts

Crowdsourcing could cut conservation costs for boring, uncharismatic, or ugly species.

• By Jason Bittel

The U.S. government classifies all chimpanzees as endangered, after decades of stalling.

• By Brian Palmer