Why humans walked upright

Why humans walked upright

Why humans walked upright

 The necessity of carrying more of scarce, high quality resources may have prompted human beings to adapt to walking upright, a study reveals.

The team from the US, England, Japan and Portugal investigated the behaviour of modern-day chimps to learn what prompted a large ape, which resembled the six-million-year-old ancestor we shared with living chimps, to walk on two legs.

“These chimpanzees provide a model of the ecological conditions under which our earliest ancestors might have begun walking on two legs,” said Brian Richmond, of the George Washington University.

“Something as simple as carrying — an activity we engage in every day — may have, under the right conditions, led to upright walking and set our ancestors on a path apart from other apes,” said Richmond.