뇌도 심장도 없는 동물 - 불가사리 해부

Today, we dissected starfish, which are echinoderms such as sea urchins and sea cucumbers.
An echinoderm is a creature with prickly skin.

Among them, the starfish has a five-radial symmetry structure with five arms extending from the center.

Strangely enough, starfish are symmetrical when young, but as they grow older they acquire a radially symmetrical structure.

How do these starfish move?
I tried to capture the movement of the starfish in a video.

I hope you enjoy it as much as I made it difficult :)

#starfish #anatomy #experiment

• #science_technology
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