Like mosquitoes, they feed on blood from animals or people.
"Why can I no longer feed on animal blood here?"
You could bring him back enough to be able to feed on blood.
They cannot feed on human blood, it's poisonous to them.
They do not age and need to regularly feed on blood to sustain themselves.
"No one would have thought to look at them because they don't feed on blood," he said.
This you may tell your father; that the tree of friendship does not feed on blood.
They come out to feed on blood about every five to ten days.
He lived long before the world came into existence and does not need to feed on blood to survive.
During this time, they feed on liver cells and blood.
