Lizard Limbs Turned into Genitalia

November 5, 2014 11:10 PM

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Millions of years ago, when vertebrates evolved from the sea to land, they had to go through some evolutionary changes, including the development of sex organs. Now, new research is shedding light on these genetic changes after turning lizard limbs into genitalia in the lab.

According to a study published in the journal Nature, the key to the origin of genitalia lies in the limbs, at least in snakes and lizards. When it comes to sex organs, lizards and snakes have two, while birds and humans have only one. But, in contrast to ours, the paired structures of these reptile...

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