The firework jellyfish is rarely seen by humans, but its bioluminescence could put any July 4th show to shame.

Blob is a very simple invertebrate, just like worms or jellyfish. Over 96% of all the animal species on Earth are invertebrate. They can be tiny like an insect or huge like the giant squid.

Scores of jellyfish-like creatures are washing up on Central Coast Beaches. The animals are called velella velella, and they ...

What most of us recognise as a jellyfish is actually the final stage of their life cycle, known as the medusa stage.

Jellyfish like the dreaded Portuguese man-of-war are ... Comb jellies may be the most ancient living animal. They have a nervous system and—this shocked specialists—two tiny anuses.

Called velella velella or by-the-wind sailors, the jellyfish-like creatures typically are far offshore. But winds blew heaps onshore this spring. It is not a true jellyfish but a close relative ...

jellyfish-like creatures coating the West Coast sands. Del Dickson, who saw the animals on Bolinas Beach in Marin County while walking his dogs, tells the San Francisco Chronicle’s Nora Mishanec ...