There are 532 species of lice out there, but let's take a look at the most common type that plagues humans: Head lice (Pediculus humanus capitis). For starters, they have six legs, and each one ...

The taxonomically closely related head louse, Pediculus humanus capitis, does not respect economic or social status and is quite common in most countries. The 2 types of lice are now recognized as ...