I did some search on the web and found some
Big mystery: What made us stand tall?
Researchers debate the possible factors
behind walking upright. Carol Ward is an associate
professor in the department of anthropology and
the department of pathology and anatomical
sciences at the University of Missouri at
Columbia. She says at the very end of her article,
"All in all, it's really an interesting puzzle and
one that's not easily solved. The theories are,
for the most part, based on logical arguments and
everyone, of course, thinks their argument is the
Well, that makes me think that a variety of
scientists (in particular anthropologists) have
some pretty good ideas, but that they don't know
for sure yet! Sometimes in science, there are
several very logical sounding "potential answers"
for the same questions, but there just isn't
enough indisputable evidence for any one at the
time. If this is the case, all hypotheses are
equally plausible, and scientists must not arrive
at any conclusions but ponder each hypothesis
Scientists try to design tests to try to
eliminate some of the potential answers. This is
the stage anthropologists are at in deciding what
was the driving force that led to the evolution of
a standing posture.
Click Here to return to the search form.