What can we learn about our limbs from the limbless? - November, 2015
"The amniote phallus and limbs differ dramatically in their morphologies..." So begins a recent study published in the journal Developmental Cell. Though you can no-doubt easily distinguish a leg from a penis, it turns out that these functionally distinct appendages share similar genetic pathways. Scientists made this discovery in a surprising way — by examining the genomes of various snake species. Snakes do not have limbs, of course, so how could they have been the key to an insight about limb development?
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