Named for the undulating waves of its broad, fleshy appendages—called parapodia—lettuce sea slugs appear in a range of colors ...

The wooden fishing boat chugs across Comau Fjord, a finger of dark water wedged between the snowy peaks of Chilean Patagonia. A Chilean flag flaps in the wind above a hand-painted black cormorant on ...

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

The Canadian government and the Ehattesaht First Nation dropped a huge chunk of change trying to save the stranded killer whale kʷiisaḥiʔis (Brave Little Hunter). Now, they’re wondering how to make up ...

New research estimates that some 200,000 birds are accidentally caught in fishing gear in Europe each year.

Removing dams from the Klamath River in Northern California seems like a clear win for fish and rivers. Why do some locals hate it?

Removing dams from the Klamath River in Northern California seems like a clear win for fish and rivers. Why do some locals hate it?

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.

In Hawai‘i, people, pigs, and ecosystems only have so much room to coexist, and the pigs exist a little too much.

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.