Whales are a group of mammals that live in oceans. They include some of the largest animals on Earth. The blue whale is the ...

A fin popped out of the water followed by a head and blow of air as a small whale appeared in the coastal water, according to a video posted Jan. 26 by Cronulla & National Park Ferry Cruises.

The isolated Cook Inlet beluga whale population must also contend with the increasingly perilous and industrialized waters near Anchorage, Alaska's most populated and fastest-growing city. Belugas are ...