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Now that’s using your head: a sea slug’s severed noggin sprouts a new body

The creatures can form a new body in only three weeks, thanks to extreme regenerative powers.
A green sea slug with black and white spots and orange antennae and frill, with the head severed from the body.

The detached head (left) of the sea slug Elysia cf. marginata can regrow its body in less than a month. Credit: Sayaka Mitoh

When sea slugs lose their heads, they keep calm and regenerate a whole new body.

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Nature 591, 348 (2021)

doi: https://doi.org/10.1038/d41586-021-00614-x

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