"We're not just here to showcase animals." Experts celebrate first-ever birth of vulnerable species in wildlife reserve: ...

Researchers face a race against time to document the species. Scientists stunned after finding new lizard species deep inside remote caves: 'Newly discovered populations' first appeared on The Cool ...

Amphidromous fish—which migrate between freshwater streams and the sea—can move between habitats thanks to ocean currents.

For 50 years, the Endangered Species Act has provided bedrock legal protection for nature’s most vulnerable, including 1,684 plant and animal species native to the United States and the ...

Eastern monarch ­butterflies doubled in population. According to a new report, the butterflies occupied 4.42 acres in central Mexico’s forests over the winter, up from 2.22 acres the previous ...

The predator was once widely seen in forested areas. Habitat loss, lack of prey and poaching are key contributors to the loss of leopards, experts say.

Endangered species face a barrage of threats from human activities. We owe them a place to call home. Lisa H. Sideris is a Public Voices fellow of The OpEd Project and the University of California .

A proposal on Endangered Species Act has some conservationists in Connecticut alarmed rollbacks could endanger vulnerable species in state.

Fireflies are harbingers of sweltering midsummer heat, but the regional renaissance is tied to conditions in the spring.

When conservation efforts bring a species back from the brink of extinction, it is worth celebrating. It is no easy feat to ...

An underwater species that was once believed to have gone extinct some 70 million years ago was recently spotted in what became a rare photoshoot for the fish. Researchers found the coelacanth ...

President Donald Trump’s administration is proposing a change to the Endangered Species Act that environmental groups say will kneecap habitat protection and lead to extinction of vulnerable ...