No they do not.
Some flies, such as female mosquitoes and tsetse flies, drink blood as a source of protein for egg production. However, not all fly species drink blood; many feed on nectar, decaying matter, or other insect prey.
no cuz only female mosquitos drink blood but male and female vampires drink blood plus everyone knows that bats are vampires
Flies do not drink blood. They feed on other substances like nectar, decaying matter, and feces.
Only the female mosquito drinks blood. Female mosquitoes have to drink enough blood to have eggs to have their babies. If they don't get enough blood they won't have young. The reason of this is that the female mosquito doesn't have enough blood to make their own young. That is why the female mosquito needs to borrow blood from humans and OTHER ANIMALS that will give warm blood.
they like it
Flies blood
Fruit flies do not drink blood. They feed on decaying fruits and vegetables, as well as other organic matter.
Well it depends on their age.
The blood of flies and other insects that the spider catches in their webs. Spiders do drink the blood of insects.
No, they drink blood. That is why they are on your pet. Blood is their food.
olny female mosquitoes drink human blood why becase to provide healthy saliva befor she lays her egg i dont
Female horse flies require protein and nutrients found in blood to develop their eggs. They are equipped with specialized mouthparts that allow them to cut through the skin of their hosts, typically mammals, to access blood. Male horse flies, on the other hand, feed primarily on nectar and do not require blood for reproduction. This feeding behavior is an essential part of their breeding cycle.