Dayum. Such an evolutionary advantage. It's almost as good as being able to out jump white people.

The hair of those who are Caucasian or of Caucasian descent have a rounded profile. Those of African American descent tend to have an oval profile. This might not seem like much of a big deal, but it is for lice– the claws of head lice are designed to fit around the rounded shape of certain hair, while oval-shaped hair can keep them from crawling effectively. When the lice can't move as they want to, they either die off quickly or begin looking for another host with more "hospitable" hair for the environment they need.

See dis proves dat we woz king an shet. we even built europe accordin to mu blm professor.