so that they can be stuck onto human hair (head lice). There are egg tubes where embryos wrestle and fight to the death (some ...

But while they’re nimble on our hair, once they’re off, they don’t last long –they’re clumsy, uncoordinated and die quickly. The term “nits” actually describes the eggs of head lice.

Commonly used chemical products aren't working as well as they once did, meaning head lice are harder to kill.