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

Yes, jellyfish do exist in lakes here in Canada. These organisms are related to saltwater jellyfish (Cnidaria), only much ...

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, ...

Today is World Jellyfish Day, but, funnily enough, there is no sting in this tale - it's just a day to celebrate marine life.

World Jellyfish Day is on November 3 to raise awareness about jellyfish and their ecological importance. Since 2014, this day ...

He added that many jellyfish feed on fish larvae and eggs, which can slow down or prevent the recovery of fish populations ...

Almost by chance, researchers in Norway found adult comb jellies reverse their development and become larva again when stressed by starvation. It helps them survive because larva eat less than the ...

This species of jellyfish is harmless to humans and tends to feed on plankton. Freshwater jellyfish can grow to the size of a penny and have up to 500 tentacles, though their tentacles cannot ...