Dear all,

My little quiz seems to have proven very popular. So, since it's Summer
(at least in the Northern hemisphere), when academics languish like
chimnies, here's another...

This one is from none other than Aristotle himself, who in 350 BC asked
the following question in his "On the Gait of Animals" < >

"Why do all animals have an even number of feet?", or in other words,
why are there no three-legged animals, for example?

Unlike the previous question, this one has no solution (apart from
Aristotle's, which I find personally rather dissatisfying).

Dr. Chris Kirtley MD PhD
Associate Professor
HomeCare Technologies for the 21st Century (Whitaker Foundation)
NIDRR Rehabilitation Engineering Research Center on TeleRehabilitation
Dept. of Biomedical Engineering, Pangborn 105B
Catholic University of America
620 Michigan Ave NE
Washington, DC 20064
Tel. 202-319-6247, fax 202-319-4287

Clinical Gait Analysis:
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