All-female animal groups including the Amazon molly fish, Komodo dragon and hammerhead shark.

Modern fishing techniques are disturbing many parts of an interlocking biological system that connects estuaries, coastal zones, continental shelves and banks, and the deep ocean. Too many fish are ...

The bear scientists shot in the Canadian arctic in 2016 was a biological mystery. It looked like a grizzly bear, complete with long claws and a prominent snout, but most of its fur was white. Call it ...

Lonesome Larry became a symbol of one federally protected species.

Migratory species don’t travel with a passport, but they cross borders all the time. This makes the animals’ conservation a uniquely challenging, international effort. That effort needs a lot of work, ...