SCIENCE

Urchin Eyes and Bloodhound Sharks

Season
1
Episode
5
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episode description

Tom “The Blowfish” Hird reveals the secrets of a sea urchin’s spikes, swims with tiger sharks to see if they really can sniff out blood from a mile away and shows how cuttlefish can change colour in a flash. He also discovers that hawksbill turtles glow, uncovers the truth behind mythical sea serpents and unveils the surprising animal that’s the most well-endowed on Earth.

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