A new study of the blue button (Porpita porpita), a small and elusive sea creature which lives on the surface of the ocean, ...

A broad swath of the Pacific Ocean is simmering from an exceptional marine heat wave that scientists warn could just be settling in. Marine animals are already feeling its effects.

Found near Australia, Solenostomus snuffleupagus is a shaggy swimmer that closely resembles Mr. Snuffleupagus from Sesame ...

Brown pelicans and other coastal birds are appearing at rescue centers in droves as Pacific heat wave broils coastal waters ...

A seahorse named 'Squirmin' Herman' found in the Indian River Lagoon signals hope for its recovery and seagrass growth.

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 ...

A sea lion pup found itself in an unfamiliar spot, strolling around San Francisco several blocks from the ocean. The San Francisco Recreation and Parks Department said that in the early hours of ...

An alarming number of sea mammals are washing up on Southern California beaches. Experts predict a possible connection to run off from the Los Angeles wildfires earlier in the year. NBC News' David ...

The transition from water to land is a question that still intrigues scientists. Those ancient organisms would have needed to adapt to several new challenges to life out of water. So, how did they do ...

Beneath the neon lights of a laser-scanning microscope, newly classified species glow in vivid greens and oranges—a far cry from the pitch-black abyss of their natural ocean floor. Researchers have ...