Pants Were Optional, 100,000 Years Ago

RobertB-DC writes "German scientists have used differences in the DNA of lice to determine when humans started wearing clothes. It seems lice are highly specialized -- head lice lay their eggs only on hair, while body lice hide theirs in the folds of clothing. Using the differences in the two species' DNA and a "standard" mutation rate, the scientists determined when clothing-specific lice (and by extention, clothes) came into existence. No comment, though, from Calvin Klein."