During an OceanX expedition, scientists are getting an unprecedented look into the lives of mysterious sixgill sharks, top predators that...

To move giraffes in Kenya from a flooding island to a safe new home, onetime enemies cooperated—and built a modern-day ark.

A new study has found that three species of deep-sea shark, including the six-foot-long kitefin shark, are bioluminescent.

Young alligators can grow back up to 9 inches of a lost tail, a study finds. They’re the largest animal with this regenerative ability.

To oceanographer Katy Croff Bell, the seas’ uncharted depths are full of opportunities to engage women and people of color in science.

In Chongqing, China, at least 135 animals were poisoned—evidence that cities should regulate spraying in public areas, biologists argue.

In the Gulf of California, fewer than 19 vaquitas are left. What can conservationists learn before the species dies out completely?

Descendants of theme-park escapees, a population of rhesus macaques in a Florida state park may soon double in size—a recipe for trouble.

Despite legal protections for sea lions, fishermen resort to lethal force to keep them from stealing their catch.

A disease that originates in domestic cats is hitting Hawaiian monk seals particularly hard.