Those bizarre sea creatures that light up like carnival rides are actually ctenophores, which have an ancient brainlike structure.

With Oregon beaches once again blanketed with Velella velella this week — tiny, electric-blue, slimy sailors that wash ashore by the millions — it seemed like a good time to take a look at some of the ...

Nearly two dozen people helped with the rescue mission for a mama manatee and her baby. The mother sea cow was hit by a propeller over 20 times.

The Harte Research Institute warns that "blue dragons," a nickname for a species of sea slug, can deliver a painful sting because of their diets ...