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Posted on: January 12, 2010 2:48 pm
Edited on: January 16, 2010 2:38 pm

Where did that gene come from?

The following report provides evidence that viruses enslaved by ancient animals permitted mammals to evolve. That's us. Viruses are our friends. A gene we borrowed from them is essential for placentas to form properly, and, therefore, for us to successfully make babies.

What's your favorite virus anecdote?

Category: General
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