Wednesday, November 27, 2019

The Difference Between Claws and Nails

Claws came first, and fingernails and toenails were a later adaptation. But nails developed for animal lineages that had already diverged from each other, so there must be reasons they were better than claws for certain species. This TED-Ed lesson gives us some ideas about why that happened. (via Laughing Squid)

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