Saturday, 9 December 2017

evolution - Comparative leg sizes


When I was a child, my father showed me the classic essay "On Being the Right Size", J. B. S. Haldane. It talks (among other things) about how large animals need stockier legs to support their weight. I weigh about the same per leg as a 350 lb deer, but my legs are closer in diameter to those of a 1500 lb horse. Why?




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