There’s evidence to suggest that the comb jellyfish was the first animal to appear on Earth some 700 million years ago.

a girl exclaims. “I think they’re just mesmerizing,” Jennie Janssen, the assistant curator who oversees the care of the aquarium’s jellyfish, tells me. “They don’t have a brain, ...

The jellyfish-like animals were being held in a saltwater tank when researchers noticed one with an odd body shape. Jonathan Diemel via Unsplash For a creature that doesn’t have a brain ...

This indicated that the comb jellyfish might be capable of reverting back to a youthful, larval state under certain conditions. The researchers found that extreme stress seemed to trigger this ...

SAN DIEGO — SeaWorld San Diego's new jellyfish exhibit, "Jewels of the Sea: A Jellyfish Experience," will open to the public ...

“You normally don't get to see jellyfish in Iowa,” Oscar said. “You have to either go to the ocean or an aquarium with a fish tank with jellyfish in it..” Oscar found the ...