Barbed-wire jellyfish (Apolemia uvaria) have invaded two Scottish fish farms, killing nearly 200,000 salmon.

The solitary fish named Mambo stopped eating and seemed to be missing its human visitors—so aquarists attached photos of ...

Sitting on the seafloor, waving colorful tentacles, they lure fish, sting them, and eat them. Scary, squishy, cool, brainless, mesmerizing—jellyfish are all of these and a whole lot more.

But what about the jellies' eating habits? What do they enjoy ... This includes zooplankton, small crustaceans, small fish and other jellyfish, according to Oceana, an ocean conservation nonprofit.

Jellyfish eat small fish, fish larvae, shrimp, tiny crustaceans such as krill and copepods, small shrimp-like organisms called amphipods and tiny plants such as algae. They will sometimes eat other ...

The spectacle of thousands of jellyfish at Hobart's waterfront dock may be breathtaking, but a leading scientist has warned ...