New genetic data overturn long-held theory of limb development

Long before animals with limbs (tetrapods) came onto the scene about 365 million years ago, fish already possessed the genes associated with helping to grow hands and feet (autopods) report University of Chicago researchers in the May 24, 2007, issue of Nature.

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<p><a href="http://www.physorg.com/news99144892.html">New genetic data overturn long-held theory of limb development</a></p> <p>Long before animals with limbs (tetrapods) came onto the scene about 365 million years ago, fish already possessed the genes associated with helping to grow hands and feet (autopods) report University of Chicago researchers in the May 24, 2007, issue of <i>Nature</i>.</p>