A new study provides support for the hypothesis that walking on two legs, or bipedalism, evolved because it used less energy than quadrupedal knucklewalking. David Raichlen, an assistant professor of ...

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CHAMPAIGN, Ill. — During the past 100 years, scientists have tossed around a great many hypotheses about the evolutionary route to bipedalism, to what inspired our prehuman ancestors to stand up ...

WASHINGTON (Reuters) -Bipedal locomotion - walking upright on two legs - is a fundamental trait underpinning humankind's success. Scientists now have identified two innovations that occurred long ago ...

Harvard scientists have discovered new evolutionary changes in pelvic structure that allowed the first humans to walk upright on two legs. The August study published in the journal Nature reveals that ...

Walking on two legs distinguished the first hominids from other apes, but scientists still aren’t sure why our ancestors became bipedal Erin Wayman A trio of upright walkers: Lucy (middle) and ...

Humans might have evolved our two-footed posture for its fighting advantage; we punch harder standing than on all fours, and downward punches are much more forceful than upward ones. This could also ...

In his 1863 book Evidence as to Man’s Place in Nature, Thomas Henry Huxley raised hell by arguing that humans weren’t special. Like other animals, he said, humans are a byproduct of evolution, which ...