<p>Researchers report December 5 in the journal <em>Neuron </em>that mice display behavior that resembles self-recognition when they see themselves in the mirror. When the researchers marked the foreheads of black-furred mice with a spot of white ink, the mice spent more time grooming their heads in front of the mirror&mdash;presumably to try and wash away the ink spot. However, the mice only showed this self-recognition-like behavior if they were already accustomed to mirrors, if they had socialized with other mice who looked like them, and if the ink spot was relatively large.</p>

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Jun Yokose , Takashi Kitamura , Daiichi Sankyo Foundation Of Life Science , Scholar Program , Uehara Memorial Foundation , University Of Texas Southwestern Medical Center , Brain Behavior Research Foundation , Method Of Research , Texas Southwestern Medical , Endowed Scholar Program , Behavior Research Foundation , Daiichi Sankyo Foundation , Life Science , Uehara Memorial , Cell Press ,