Taking lab mice back to their roots

Wild traits are bred back into lab mice, revealing a new gene function on the way

Wild mouse

This wild mouse has some behaviors, such as aggression toward other mouse pups, that aren’t present in its soft, docile lab counterpart. A new study shows that breeding lab mice back to the wild could uncover new functions for some genes.

dullhunk/Flickr (CC BY2.0)

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