Other Free Encyclopedias » Science Encyclopedia » Science & Philosophy: Laser - Background And History to Linear equation

Lice - Lice On Humans, Lice On Other Animals

host species body hosts

Lice are small, wingless, biting or sucking insects, many of which are ecto-parasites. There are about 3,000 species of lice in the orders Mallophaga and Anopleura. The Anopleura are sucking lice, which are parasites of mammals, and which feed only on blood. The Mallophaga are chewing or biting lice, and are primarily pests of birds, feeding on skin and feathers.

Most species of lice are specific to one or a few related species of host animals, and lice cannot survive away from their appropriate hosts. Lice are generally spread from host to host by direct body contact, or through shared clothing or bedding (in the case of human lice).

Both orders of lice have direct development, in which the eggs hatch into nymphs that look like miniature versions of the adult. Lice have a flattened body and poorly developed eyes, or no eyes at all.

Most lice commonly occur in the fur or feathers of their warm-blooded hosts. These lice have specialized, hook-like appendages on their relatively short legs for securing these parasitic insects onto the body of their hosts.

User Comments

Your email address will be altered so spam harvesting bots can't read it easily.
Hide my email completely instead?

Cancel or

Vote down Vote up

almost 7 years ago

O o o o oO o oO o oO ooO ooO o ooooO OO OO Oo o