Watch barrel jellyfish swarm off the coast of Cornwall - video
Published: 22 April 2015
Footage shows swarms of barrel jellyfish (Rhizostoma pulmo) off the coast of Cornwall in the UK. The video, taken by a local wildlife enthusiast Ross Wheeler on Wednesday from a boat near Falmouth Harbour, shows the jellyfish gliding through calm water. This swarm of barrel jellyfish, which can grow up to six feet long, was reportedly a mile long.
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