Animals: Waltzing Mice

The sight of a mouse, pivoting on a hind leg, gyroscopically whirling around 416 times without stopping or reversing might reasonably lead the observer to conclude that he or the mouse was drunk. Yet sober scientists have watched a sober mouse perform this very feat. The whirler was a Japanese waltzing mouse. It whirled because of a physical defect, probably of its inner ear.

At Ann Arbor last week the University of Michigan's Zoologist Lee R. Dice announced to the Michigan Academy of Sciences his discovery that this ear defect is hereditary not only...

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