TED Talksのインスタグラム(ted) - 4月1日 22時11分

This wild-looking brittle star, a relative of the sea star, is bioluminescent: it can produce bands of light that dance along its long, spindly arms. Many animals at the bottom of the ocean have this ability to glow in the dark, from coral bushes to squids. They use bioluminescence to hunt, mate, defend themselves when under attack, and even cry out for help. Learn more at go.ted.com/brittlestar
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