52.6 F
San Francisco
Wednesday, April 8, 2020
Advertisement
Tags Back pain

Tag: back pain

The 21st century upright woman

The latest “evolutionary debutante” is Ardi – Ardipithecus Ramidus – whose complete skull and pelvis crowns her as the greatest grandmother of modern day humans. About 2 million years ago these women evolved into the species Homo erectus. They walked upright out of Africa to populate the world.