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What can liquefy its limbs, throw up its own stomach and still live? Echinoderms, a group of sea creatures that can regenerate their own body parts! In this episode of Today I Learned, National Geographic Explorer Paul Bump tells you all about echinoderm’s incredible capacity for regeneration.

Read more video.nationalgeographic.com

4XEj5 TIL in 1962 the US detonated a nuke, Starfish Prime, in space to clear out Van Allen belt radiation (making Apollo missions safer) and for research. It took out part of Hawaii's electrical grid, several satellites, and made the Van Allen radiation much worse. A planned further test was cancelled.
KYA06 TIL that not a single member of the nazis apologized while at trial until 6 years ago
ADxbg TIL: Some rescue groups are sending animals to prison
0wrMN TIL crows and ravens can mimic human languages
KOMWJ TIL of the Ultimate Coast to Coast challenge. This 5,500 mile ride starts at Key West, Florida, and goes up to the Artic Circle to the town Deadhorse, Alaska.