clipped from: www.livescience.com Humans caught pubic lice from gorillas about 3 million years ago. We likely picked up the delightful disease, affectionately known as "crabs," not by sleeping with gorillas, but by sleeping in gorilla nests or eating the gorillas, scientists concluded in 2007. Humans, by the way, are the only primates that have both pubic lice and head lice (chimps have just head lice, and you now know which kind gorillas have).