October 06, 2011
Try Again

Scientists have announced the discovery of the first known reptile with a true placenta. While live birth is something that's evolved independently many times in the history of life on Earth, it was long thought that only mammals had figured out placental nourishment. Now it looks like perhaps as many as three skink species have done it as well.

Posted by scott at October 06, 2011 10:29 AM

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