The findings reveal that our ancestors started to wear clothing long after they lost their ape-like body hair. Genetic skin coloration research shows that hair loss happened around one million years ago, long before modern humans emerged in Africa. Our ancestors were likely running around nude and relatively hairless for quite some time then.
"It's interesting to think humans were able to survive in Africa for hundreds of thousands of years without clothing and without body hair, and that it wasn't until they had clothing that modern humans were then moving out of Africa into other parts of the world," Reed said.
He added that our success and progression as a species has been made possible, in large part, to our "controlled use of fire, the ability to use clothing, new hunting strategies and new stone tools."
Since our ancestors are thought to have migrated out of Africa and into colder climates and higher latitudes anywhere from 100,000 to 60,000 years ago, the findings indicate the invention of clothing made such long journeys northward possible.