Snakes have graceful, elongated bodies containing hundreds of vertebrae. This extreme of morphology stems from evolutionary changes in a developmental clock that regulates body patterning.
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Vonk, F., Richardson, M. Serpent clocks tick faster. Nature 454, 282–283 (2008). https://doi.org/10.1038/454282a
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DOI: https://doi.org/10.1038/454282a
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