Posted on 07/17/2007 1:42:37 PM PDT by gpapa
WASHINGTON - Why did humans evolve to walk upright? Perhaps because it's just plain easier. Make that "energetically less costly," in science-speak, and you have the conclusion of researchers who are proposing a likely reason for our modern gait.
Bipedalism — walking on two feet — is one of the defining characteristics of being human, and scientists have debated for years how it came about. In the latest attempt to find an explanation, researchers trained five chimpanzees to walk on a treadmill while wearing masks that allowed measurement of their oxygen consumption.
(Excerpt) Read more at news.yahoo.com ...
I have found upright walking much easier than the knuckle walk.
What a bunch of slack-jawed do-nothings!
No wonder all dem navy boson mates looked so tired.
Really hate to sound like Andy Rooney, but have you ever noticed and wondered why scientific articles for mass dissemination are so dumbed down?
Ever try explaining something complicated to a reporter?
I think we learned to walk upright so we could keep our hand free to carry stuff. Men wanted to carry spears and bows and arrows and later guns. Women need to carry their purse, everyone know that!
Humans walk upright because that is the way the Designer designed them.
Disclaimer: Opinions posted on Free Republic are those of the individual posters and do not necessarily represent the opinion of Free Republic or its management. All materials posted herein are protected by copyright law and the exemption for fair use of copyrighted works.