Flies (mostly house flies) are Saprozoic creatures i.e., they feed on solid and semisolid fully dissolved liquid or semi liquid diets. Their mouth parts are Sponging type so as to absorb those nutrients pretty much like a vacuum pump. read more
Go away!” flies just never seem to get the point. They just keep on coming back for more. Given that the common housefly doesn’t have any interest in sucking blood (feeding on open wounds is a different story) you think they’d fly away from humans. read more