The whales were observed off Laguna Beach on Sunday, March 23, rolling and appearing to play in the surf steps from the sand.

Like other mammals, whales are warm-blooded, which means their body temperature stays the same, even in cold water. They have a thick layer of fat under their skin. This fat, called blubber ...

A new study out of the University of Vermont quantifies just how much migrating female whales do to sustain ocean ecosystems.

And we were trying to figure out a way to get to the whale. It appeared that it was, first glance, moving in and out of the water from the shore. But in actuality, that was just the tide.

A pair of adult female right whales are still roaming around off Florida's west coast while calving off the Atlantic Coast continues.

Typically, some gray whales are born on the way south, she said ... "They are looking for the warm water, so they just keep going," Schulman-Janiger said. Some also may not have made the migration ...

One of the whales was seen capturing a bird and taking it below water, sparking gasps from onlookers. It was "a once-in-a-lifetime experience for West Seattle. Not only in the whales' proximity ...