Each killer whale has a distinct pattern of pigmentation behind its dorsal fin. How do these patterns vary around the world?

A unique fjord in Chilean Patagonia gives scientists a chance to unlock the reproductive secrets of cold-water corals that ...

Tundra Books It’s common for children to request their most beloved picture books on repeat. This counting book embraces this ...

Careful illumination helps showcase a bluebottle’s constituent bits, both above and below the water’s surface.

Decades after they were hunted to local extinction, fin whales are recovering in the Kitimat fjord system—only to be threatened by a booming LNG industry.

A unique fjord in Chilean Patagonia gives scientists a chance to unlock the reproductive secrets of cold-water corals that typically live thousands of meters below the ocean’s surface.

One Great Shot: Are You Ready for This, Jelly? During a nighttime dive, a veteran underwater photographer captured a tiny fish’s cunning effort to find a safe spot in a dark sea.

A massive environmental calamity rocked the ancient Mediterranean. It took millions of years for the ecosystem to recover.

Francis “Bully” Mission Sr., president and founder of Mission Animal Control, is in a good mood when I meet him at a strip mall parking lot on the south side of the Hawaiian island of Kaua‘i. He and ...