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Dig into why jellyfish populations have increased, and how leatherback sea turtles can help get their numbers under control.

A giant jellyfish the size of a human has stunned a diver off the south-western coast of England.

Beachcombers found more than 10 of these giants along just 10 miles of coast.

Jellyfish, the wobbly wonders of the ocean, often astound with their unique shapes, sizes, and stings. Learn more about these ...

documentary video for kids "Jellyfish might look simple, but they're great hunters! They use their long, stinging tentacles to catch ...

Lion's mane jellyfish stings are poisonous and you can still be stung, even if the jellyfish has died. Subscribe to WCVB on ...

WTF? A SWARM OF GIANT JELLYFISH!! Cornwall Humbled by Cornwall jellyfish encounter! Huge jellyfish – described as being ...

Officials said they've seen a record number of jellyfish stings in Volusia County.

Quick facts about this very large Cnidarian! The barrel jellyfish (giant barrel jellyfish, Rhizostoma pulmo, dustbin lid jellyfish, frilly ...

Journey into the deep ocean to explore the fascinating world of deep sea creatures. This ocean documentary dives into ocean ...

A massive jellyfish, measuring nearly two feet in length, surprised residents of Cabadbaran City when it appeared on their shores.