Unlike other jellyfish, giant phantom jellies don't have stinging tentacles to catch prey. Instead, they wrap their arms around their food — usually plankton or small fish — and hoist them ...

Barrel jellyfish are the largest jellyfish that appear in UK waters A marine scientist who encountered a huge jellyfish while diving last month has encouraged people to take part in a nationwide ...

This story appears in the October 2018 issue of National Geographic magazine. Moon jellies, which are found in shallow bays around the world, look like small, not entirely friendly ghosts.

The lion's mane jellyfish is among the world's largest A dog walker was stunned to stumble over one of the world's largest jellyfish on a beach. Andy Donoghue said he "couldn't believe his eyes ...

You’ve just met the giant phantom jelly ... While sea jellies are often casually called jellyfish, many scientists prefer to stick with just “jelly” because the animals aren’t fish.