most destructive small creatures in the world

Lets start our list with the least destructive (but ever so annoying) creature: The louse. Lice are wingless parasitic insects that reside on peoples heads and feed on human blood. Though they are not know to carry diseases, they are known to impart unto the unfortunate host a most uncomfortable case of scalp itch. They usually spread via headtohead contact with an already infested person and can also spread via the sharing of clothing and other personal belongings.