Your jaw is basically a fish gill (plus millions of years of evolution).http://io9.com/your-jaw-is-basically-a-really-elaborate-fish-gill-1732054980 …pic.twitter.com/q5n3hOTlYg
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FascinatingRT “@io9: Your jaw is basically a fish gill (plus millions of years of evolution).http://io9.com/your-jaw-is-basically-a-really-elaborate-fish-gill-1732054980 … pic.twitter.com/9f2vjI10SC”