This jellyfish species has a clear body, can glow green and has an almost unnoticeable sting, Jace Tunnell writes.

Portuguese man o’ war have been spotted on Spanish beaches, forcing the temporary closure of some popular shorelines last ...

The Bolinas Beach in Marin County was covered with a massive swarm of Velella. The jellyfish-like species are common in Northern California in spring and summer. The weekend rains and winds washed ...

In Mallorca they are referred to as 'barquetes de Sant Pere', Saint Peter's sailboats. They are from the same family as the ...

Spain ’s beaches are now facing an unexpected and increasingly dangerous issue: jellyfish. Rising temperatures and ...

A warning has been issued to anyone on holiday in Spain this year. Rising temperatures and environmental disruptions have led ...

A 'rarely seen' large jellyfish that looks like a huge blob washed up along the Texas coast on Monday, March 24.

NEWPORT, Ky. (WKRC) — Newport Aquarium is set to unveil a major expansion with its new exhibit, "Jellies: Go with the Flow," ...