SciShow Explains Why Certain Animals Have the Biological Ability To Re-Grow Missing Limbs

Hank Green from SciShow explains why certain animals have the biological ability to re-grow missing limbs and why others (like humans) can’t.

Starfish can regrow lost arms, and salamanders can sprout new limbs. So why can’t we? Sci Show explains the science of regeneration, and explores the limitations the humans face — and are trying to go beyond.

Lori Dorn
Lori Dorn

Lori is a Laughing Squid Contributing Editor based in New York City who has been writing blog posts for over a decade. She also enjoys making jewelry, playing guitar, taking photos and mixing craft cocktails.

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