What's Bugging Me?
(see entry below)

What Was Bugging Early Humans???

"New research showing that lice evolve with the people they infest demonstrates that a now-extinct species of human, Homo erectus, came into direct contact with modern humans, Homo sapiens. That contact happened as recently as 25,000 years ago. Evidence of contact between the two species of humans is surprising, scientists say, because researchers long had thought that Homo erectus became extinct hundreds of thousands of years ago."
Click on the title above, "What Was Bugging Early Humans?" for the link to the article