The full-grown creature is too strong for a man's body.
A full-grown larva digs a pit about 2 in.
Gentleness and docility are specially characteristic of the species, even when full-grown; while in the native state its habits are thoroughly arboreal.
The eggs, laid on the hairs, and known as "nits," hatch in about eight days, and the lice are full grown in about a month.
These markings generally fade, and quite disappear before the animal becomes full grown.