Humans Can Only Walk In Circles and We Don't Know Why

It would appear that we humans are always drunk can't walk in a straight line. But scientists don't know exactly why. Which is kinda kewl and kinda surprising, given all the gizmos and gadgets and brain research going on these days. You'd think we could figure this out: handedness? our legs are not exactly the same length, so we lean to one side?

Me? I tend to lean toward {sorry - couldn't help it} an inner ear theory: if inner ear influences balance, I think it makes sense that it might influence our perception of upright and straight.

But you can go with the drunk theory if you prefer; it is a lot more fun. :)

Check out the video and some great pics in the supporting article on the National Public Radio site.



(Source: Gizmodo)



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