Dive into the world of the ocean’s most feared creatures as we reveal the five most dangerous jellyfish on Earth from the nearly invisible Irukandji to the infamous box jellyfish. Learn what makes ...

The problem with jellyfish is that their stinging cells can remain active even after the animal is dead. Fishermen complain ...

While certain jellyfish are more common, sometimes a stray shows up. For example, recently lion’s mane jellyfish, which pack ...

A massive jellyfish with tentacles stretching more than 100 feet washed ashore a Maine beach last weekend — with swimmers and ...

Kevyn Fowler, a retired photojournalist for local station WMTW, captured video of a lion's mane jellyfish washed ashore in ...

How to Survive shares five box jellyfish facts that could save your life if stung in open water. They cover how to recognize, ...

Known as a Lion’s Mane Jellyfish, the animal is a member of the largest jellyfish species in the world, according to the Smithsonian.

This jellyfish was large even for a lion’s mane jellyfish, which usually grow to about 1.5 feet long, according to researchers.