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Episode · 13 September 2026

This Pea-Sized Jellyfish Can Restart Its Life. Scientists Have Reset One at Least Ten Times

A jellyfish smaller than a pea that can turn back into a polyp, even after reaching adulthood, and start its life again.

The footnote on the shirt

¹ Turritopsis dohrnii medusae can turn back into polyps, even after reaching sexual maturity: the first animal found to do this.

Piraino et al., Biol. Bull., 1996

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