When we talked about the vampire, we always will think about the bats. Actually, there is a really bats called vampire bats. Its Latin name is Desmodus. Vampire bats are mammalian blood-sucking species. Distributed in the central and southern Americans,small size , the maximum weight does not exceed 30-40 grams. The skull and teeth have been highly specialized,and the number and size of the cheek teeth tend to decrease, which is the most specialized species. On the canine large and knife-like, have unusually sharp “ knife edge”. Molar small inorganic, strong and strong thumbs, hind legs powerful, able to run quickly on the ground, and even jump short distances. Vampire bat flying strong, not tail, with the nose, which had belonged to the wing bats, is a veritable blood eating groups. Vampire bats have a longer life expectancy of 12 years. In general, a vampire bats live up to 100 liters of blood. Vampire bats in one night, can suck the blood of several objects, or several times to go to suck the same object of blood. After the meal, vampire bats will return to their habitat. In fact, any quiescent warm blooded animal can be attacked, but vampire bats seldom bite the dog because the dog can hear a higher frequency of sound and notice the vampire bat’s approach. Sometimes blood sucking bats bite the sleep people, the wounds are small, the amount of bleeding may be large,and the large bloodstained after the bite is surprising. However, the real danger is the transmission of the disease. For example, it can spread the horse when drawing blood from an animal Trypanosomiasis; rabies is most likely to spread when bites of humans and livestock. Undergraduate diet special. They start their activity after dark, foraging for white-winged bats and bubbly blood-sucking birds every night, while vampire bats suck in milk blood. They land on the ground near the hosts such as cattle, horses, deer, and then climb the forelimbs to the shoulders or neck. Using their incisors and canines, they can cut a few millimeters of thick skin and lick their blood with their tongues. Occasionally vampire feet in the livestock, it can be beating rapidly from time to time to avoid the host foot defensive action and cause harm. They are attacking. When the wild horse, often adsorbed horse legs BU, with sharp teeth piercing Mustang very quickly, and then vampire with a sharp mouth. No matter how wild horses jump, bolted, can not expel such bats. But the bat can be calmly absorbed in the wild horse body Bu, fell on the wild horse head, until fully absorbed enough to fly satisfiedly. Second, wild horses are often rage, bolted, flow m helplessly die. Vampire bats in the saliva due to anticoagulants, blood coagulation can slow down and vampire quite smooth. Each bat sucks more than 50% of its body weight each night, a 34 gram vampire bat, about 18 grams of blood each night