Newest link in the chain disconnects

I propose that Mother Nature has greater plans for us than what she has been able to achieve and that we are living amid a growth spurt in human evolution. Let's review the developments.

In 1974, researchers came across bone fragments in Ethiopia that represented a crossroads in evolution.

Lucy, as they called her, was a hairy, apelike creature that lived 3.2 million years ago. She had a small brain like a chimpanzee's. But her legs were longer and arms shorter than her simian cousin's.