#Bat# Among the bat species, there are 3 species of bats that feed on blood, namely common vampire bats, hairy-legged vampire bats, and white-winged vampire bats, which are generally distributed in central and southern America.
Vampire bats will be active at night, choosing sleeping cows and horses and other large herbivores as prey, because vampire bats are small bats, sucking a small amount of blood, a vampire bat sucks about 100 liters of blood in its life, plus they take advantage of these large animals to sleep, quietly bite their skin with their teeth to suck blood; Members of their subfamily Vampire Bat saliva contain anticoagulants and anesthetics, so animals don't notice they're being sucked.
The reason why vampire bats like to suck blood, a research team found that vampire bats have 13 missing functional gene copies compared to other bats, including the deletion of genes related to sweet and bitter taste buds, which may be the reason why they switch to the special diet of blood sucking.
Vampire bats are scary because they also suck human blood, and the amount of blood they draw is not life-threatening, but can cause serious infections and diseases.
