Scientists still have much left to learn about the creatures, even as hundreds of thousands of them wash ashore.

Animals come in an extraordinary range of body shapes. A starfish looks nothing like an earthworm, a mouse, or a human. Yet even closely related species can appear radically different: corals, ...

Blue, jellyfish-like creatures called velella velella are washing ashore California beaches. Here's what to know.

A new study regarding parasites living inside fish illustrates the widespread presence of organisms in major ecosystems.

Freelance writer Amanda C. Kooser covers gadgets and tech news with a twist for CNET. When not wallowing in weird gear and iPad apps for cats, she can be found tinkering with her 1956 DeSoto.

Wild sea lion Chonkers has taken up residence at San Francisco's Pier 39 Kevin Buckholtz Chonkers, a 2,000-pound Steller sea lion, has become Internet famous for his massive size The mega mammal ...

The ocean is home to some sea creatures that will likely give you a fright. Much of the ocean's marine life is yet to be discovered, with scientists estimating that a whopping 91% of ocean species ...

Scientists explored the recesses of the ocean floor off the Cocos (Keeling) Islands near Australia. They found a host of bizarre sea creatures, from the tribute spiderfish to the bony-eared assfish.