February 15th, 2012


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  1. JohnnieCanuck

    And like all tetrapods, including mammals, Wilbur has a Recurrent Laryngeal Nerve. That’s the nerve that leaves the spinal cord at the neck and proceeds intelligently to the larynx. Only first it has to loop around the aorta and then head all the way back up to just about where it started.

    For a giraffe, that’s 15 feet of clever nerve design. For a sauropod dinosaur, more like 92 feet. Also remember that the nerve bundle is made of the axons of nerve cells, so that’s the length of each of the cells in the nerve.

    Evil-ution, indeed.

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