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Jellyfish blooms can cause havoc, scaring away tourists, clogging up fishing nets, and even getting stuck in power station cooling pipes.

But scientists are finding ways to use the creatures to help us solve some big problems. They think jellyfish mucus could filter microplastics from our water systems, and their collagen could help us develop new medicines. And some want to see jellyfish on our plates.

Produced and presented by Ruth Evans

Picture credit: Getty Images