Along some 70 miles of Southern California coastline, usually curious and playful sea lions are attacking humans in the water ...

In recent weeks, hundreds of sea lions, dolphins and other animals have turned up in the sand dead or seriously ill, alarming ...

The Mesozoic Era extinctions formed the world as we know it today. Read about what caused them and which animals survived.

These odd-looking ocean creatures that kind of look like tiny sailboats have begun washing up on the shore of Crystal Cove ...

Connecting the land, sea and sky, Kailani arrived on Oahu's north shore as the first Hawaiian monk seal of the season.

A photographer's iconic shot of polar bears in abandoned buildings on a Russian island shines a spotlight on wider changes in ...

The sea mammals may actually be able to sense the amount of oxygen in their blood—something we humans can't do.

Campaigners have raised concerns about a “pitiful” penguin habitat at a London Aquarium which meets minimum enclosure ...

Dolphins, sea lions and seabirds are being found sick along beaches throughout Southern California, poisoned by an ...

There's an ongoing battle to save a part of this planet from destructive mining that most people don't know about. Not only ...

One of the first cetaceans, Pakicetus, was a goat-sized creature that lived along the banks of lakes and rivers in ...