Head lice (Pediculus humanus capitis) are wingless insects that feed off human blood on the scalp. They are commonly found in school-age children, although anyone can contract them. The most prominent ...

Added Jul 29, 2021 at 09:27AM EDT by Harvey K. During his wrestling career, Dwayne "The Rock" Johnson would often make a facial expression of raising one eyebrow, lowering the other and tilting his ...