Habitat Destruction

Only 35 Mount Graham squirrels remain in the wild, but five captive squirrels could hold the key to their long-term survival — if we can get them to breed.

The proclamation to remove more than a million acres from protection has been called everything from illegal to racist.

It also revealed to me the devastating impact humans are having on the world around us.

Populations of the once-common bonnet macaque have fallen 65 percent.

Trump’s border wall would imperil some of the most diverse ecosystems in two countries.

Mountaintop mining and excrement-filled lagoons threaten the unique biodiversity of the American southeast.

Ewaso Lions founder Shivani Bhalla aims to help people learn to live with local predators.

Research in Costa Rica illustrates the value of monkey social behavior — and of stolen bananas.

The author of the Southern Reach Trilogy and “Borne” examines “life in the broken places.”

Why are government contractors clearing trees on a private Texas butterfly sanctuary?