In fact, over 85% of the occurrences of bipedalism that were observed took place when the apes were in the trees. "Our study suggests that the retreat of forests in the late Miocene-Pliocene era ...

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 ...

A male western gorilla (Gorilla gorilla), photographed at the Bronx Zoo. The origin of human bipedalism has long been a hot topic among paleoanthropologists. At the very least it is seen as something ...

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 ...

Human bipedalism may have evolved to protect babies too heavy to hang on our increasingly hairless bodies, says Brazilian physicist Lia Amaral. Apart from Homo sapiens, primate babies cling to the fur ...

Near a lake in Kenya, researchers have found ancient footprints of large birds, horse and antelope relatives, and they've also found evidence of two distinct human ancestors. As NPR's Jessica Yung ...

Add Yahoo as a preferred source to see more of our stories on Google. Aside from our big brains, the trait that most distinguishes humans from other animals is our ability to walk fully upright on two ...

Carl Sagan famously said, “We are made of star stuff.” For modern humans, this may be true in a very unexpected way. Research published Tuesday in The Journal of Geology suggests that stars are what ...