Jellyfish are well known for their ability to multiply en masse and influence coastal ecosystems. But what is less known is ...

An invasion of thousands of stinging jellyfish has been triggered by the sizzling start to the summer as swarms were spotted ...

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

A possible new "jellyfish" galaxy discovered by the James Webb Space Telescope could deepen our understanding of galaxy evolution and star formation.

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 ...

As temperatures soar and New Englanders hit the beach, officials are warning swimmers to watch out for massive jellyfish that ...

A 5-foot-wide lion's mane jellyfish spotted on Willard Beach in South Portland last weekend prompted waterside safety ...

A beach popular with swimmers, families and dog walkers had an unexpected visitor in the form of a huge, toxic jellyfish that ...

Rising sea temperatures mean new marine life will enter Welsh waters and some of it will give you a painful sting if you get ...

Beach safety officials warn that dangerous marine life - specifically early-arriving jellyfish - are creating painful ...

Using the James Webb Space Telescope (JWST), astronomers from Canada and Switzerland have discovered a new galaxy, which ...