Yes, they do eat their kind.
lice eat dead skin in your hair/head but i don't know why.
lice eat blood.
No
they feed on blood
Head lice.
The right answer is no. Lice eggs are white. They eat your hair and make you scratch your head.
head lice
The relationship is parasitic, as the lice takes blood, but returns no benefit to the human host.
No they are only a pest
Head lice eat blood from attaching themselves to someone's head. Each only needs a small amount of blood to survive though.
Spiders do not typically eat head lice, as their diets mainly consist of insects and other small arthropods. While some spiders may consume small pests, head lice are specifically adapted to live on human hosts and are not a common prey for spiders. Instead, natural predators of head lice include certain types of insects, such as predatory mites or some small beetles.
You get head lice by putting your head by someone who already has head lice