If you've been to Baker Beach in San Francisco this week, you've probably seen droves of blue jellyfish-like creatures covering the shore.

Blue jellyfish-like sea creatures are once again washing up along the Northern California coast, drawing crowds and curiosity ...

The creatures can be harmful to dogs who eat them while on the beach, potentially causing vomiting, diarrhea and other ...

Wild sea lion Chonkers has taken up residence at San Francisco's Pier 39 ...

Chonkers is a beefy Steller sea lion that has gone viral for basking at Pier 39, a shopping center in San Francisco.

Thousands of bright blue Velella velella, known as by-the-wind sailors, washed up on California beaches including Baker Beach ...

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, ...

These creatures have been washing up on Alabama's beaches for the last few weeks, but beachgoers should give them a wide ...

Thousands of meters below the ocean's surface lurk some gigantic creatures, much larger than their shallow-water brethren. Scientists have a few hunches for why this happens, but the debate continues.

Thousands of feet deep in the South Pacific Ocean, a pair of scientists piloted a submersible through the dark waters and scanned the seafloor. Some pale creatures with dozens of tentacles caught ...

Is the sea turtle your spirit animal? The sea turtle has been a powerful symbol for many cultures around the world for centuries. In some cultures, the turtle is seen as a symbol of good luck and ...

They look like aliens, but these blue jellyfish-like creatures are very much of this world. They are not dangerous to humans, ...