Deep evolutionary link between human hands and fish fins found

Discussion in 'Biology & Genetics' started by Plazma Inferno!, Aug 18, 2016.

  1. Plazma Inferno! Ding Ding Ding Ding Administrator

    Messages:
    4,610
    To help his readers fathom evolution, Charles Darwin asked them to consider their own hands.
    "What can be more curious," he asked, "than that the hand of a man, formed for grasping, that of a mole for digging, the leg of the horse, the paddle of the porpoise, and the wing of the bat, should all be constructed on the same pattern, and should include similar bones, in the same relative positions?"
    Darwin had a straightforward explanation: People, moles, horses, porpoises and bats all shared a common ancestor that grew limbs with digits. Its descendants evolved different kinds of limbs adapted for different tasks. But they never lost the anatomical similarities that revealed their kinship.
    Now, a team of researchers at the University of Chicago reported that our hands share a deep evolutionary connection not only to bat wings or horse hooves, but also to fish fins.
    The unexpected discovery will help researchers understand how our own ancestors left the water, transforming fins into limbs that they could use to move around on land.

    http://www.nytimes.com/2016/08/18/s...ntists-discover-a-deep-evolutionary-link.html

    Paper: http://www.nature.com/nature/journal/vaop/ncurrent/full/nature19322.html
     
    Walter L. Wagner likes this.

Share This Page