WATCH: 'GLOW-IN-THE-DARK' SHARKS

Published 24 Jun 2018, 10:29 BST
WATCH: 'GLOW-IN-THE-DARK' SHARKS
WATCH: 'GLOW-IN-THE-DARK' SHARKS

Why do sharks glow? After discovering more than 200 biofluorescent marine creatures, scientists are studying the role of this phenomenon.

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