They do suck they're blood, but a cow is very large and produces blood pretty fast, while vampire bats are small and are satisfied after about 1-3 ounces. I'm no scientist but I'd say that would be very rare.
vampire bats was discoverd in ancient history times
They are mainly called that because the behavior of the bats was similar to that of the legendary 'vampire' that would suck blood from humans and animals. Vampire bats drink blood (usually only a few drops) from animals.
There really is no symbiotic relationship between sheep and cows as they are both herbivores and both eat the same food source, though sheep are able to eat other plants that cows would not touch or simply trample to the ground.
Jaguars are not on the list of predators for vampire bats. The main predators of vampire bats are hawks and eagles.
Vampire bats rarely attack humans, because they prefer to get their meal from small sleeping mammals. There are three different species of vampire bats.
Vampire bats feed on the blood of animals, usually cows.
They can, but they prefer livestock like cows.
Never...
Vampire bats will bite animals where it is easier to draw blood, usually where there are veins.The most common bite locations are:NeckShoulderAnklesRumpCows, pigs, horses and sheep are the easiest for vampire bats to feed on.
No vampire bats do not kill their prey, they just suck blood and that's it I will hardly believe that they can kill a full grown bear even in a swarm
they hunt for anything like cows, cats and much more. because cows and cats are warm blooded animals.