The tiny fish doesn’t reproduce well in years when the water doesn’t flow. Several bad years in a row could push the species closer to extinction.

Drought has already killed more than 100 wild horses. Volunteers hope to prevent more deaths.

YouTube is inspiring viewers across the globe to protect Hawaii’s Laysan albatross — but will that be enough in the face of climate change?

Atlantic salmon from Norway carry a dangerous disease that puts native Canadian fish at risk — and maybe those in the United States, too.

Using birds to help get rid of pests is proving to be more effective than poisons — and less expensive.

They’re tasked with protecting the world’s most endangered species, but at least 100 rangers die each year, mostly after conflicts with poachers.

Video: The big cats face a long list of threats, from climate change to habitat loss to the illegal pet trade.

Video: Poachers slaughtered 1,028 South African rhinos for their horns in 2017.

Many states currently are poorly equipped to assume the responsibility of caring for their threatened wildlife.

Archivists are working to save decades of film and other scientific information that could hold clues to protecting species and habitats today.