Researchers reveal process of making ribs

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Researchers reveal process of making ribs

http://www.sciencedaily.com/releases/2010/...00427071236.htm


ScienceDaily (Apr. 27, 2010) — Like all vertebrates, snakes, mice and humans have in common a skeleton made of segments, the vertebrae. But a snake has between 200-400 ribs extending from all vertebrae, from the neck to the tail-end, whereas mice have only 13 pairs of ribs, and humans have 12 pairs, in both cases making up the ribcage
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