Illustration for article titled Why Cant Humans Walk Straight?

Looking for a new way to humiliate friends? Ask them to walk in a straight line while blindfolded. Scientists have tested several theories on why humans can't walk, swim or drive straight without visual reference points, and they're still stumped.

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Image via Sergey Sukhorukov/Shutterstock.

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DISCUSSION

What about those indigenous Australians who basically have a flawless internal compass? I bet they could do it.

[online.wsj.com]