Video: Rats Smell in Stereo, Study Says

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February 3, 2006—Watch a silent video clip of a trained rat undergoing a test to determine if it can smell in stereo. The rat sniffs odors piped through a hole in the center of a chamber wall. A blue light indicates to the observer which direction the odor is coming from, left or right. The rat is supposed to drink from the waterspout associated with the direction of the smell.

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