Many human ails are ‘scars’ of evolution

Blame evolution for why sprained ankles, hip fractures and other physical problems plague people — and not our closest animal relatives

By Susan Gaidos, 10:21 AM February 6, 2014

Sometimes it just happens: Step off a curb or walk over a rocky surface and suddenly your ankle twists. At once, your arms flail and your body jerks as you strain to catch your balance. Such trip-ups can be painful and embarrassing. But often the culprit is not clumsiness.

It’s evolution.

Traveling upright — on two feet — “is a very peculiar way to walk,” notes Bruce Latimer of Case Western Reserve University in Cleveland, Ohio. “No other mammal does it.”

Latimer should know. An anthropologist, ...

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