Why do humans walk on two legs? To save energy
See associated link for full story, here's an excerpt:
>>>
For some, walking on two legs consumes less energy than walking on all fours, according to a paper from UC Davis. The findings may help explain why human ancestors evolved into bipeds 10 million years ago.
The study--which compared data from humans and specially trained chimps on treadmills--found that humans used about 75 percent less energy and burned 75 percent fewer calories than walking on all fours or two legs for chimpanzees, according to the report.
Interestingly...
» Read the rest of the post
2 Votes
