Lamprey: from the appearance point of view, may make some people lamprey nightmare. This is a basic living underwater cartilaginous fish, has a large number of teeth, body length ranging from 13 cm to 100 cm.
Lamprey belongs to Agnatha are many, razor sharp teeth grow in similar sucker mouth. They will bite the side of the fish, while riding a free ride to enjoy a big meal. Despite the terrible appearance, but only a handful of lamprey attack humans case.
The vampire, lamprey can be said to be the most ancient. Fossil evidence shows that the lamprey with the same formation in the sea has been in existence for over 300 million years. The way they suck prehistoric sharks has little difference from now.
Vampire bat in nature; vampire, vampire is probably the biggest name, they are the only mammals only rely on blood to sustain life species. These nocturnal bats in the cave to sleep during the day and come out to feed at night, often hundreds of group activities.
Vampire usually in animal blood for food, and prefer cattle, there is no record of human blood sucking. Little is known about the vampire bat in before is usually the first to gobble down, fell to the ground, and then close to the sleeping prey.
Although the notorious vampire bat, but each other is very friendly. When the vampire bat is hungry, it can be similar to the "begging" some food, and the other will be in the stomach recently eat some blood out of their share of ruminant. To some extent, this trait reflects reciprocal altruism in the animal kingdom. Does that make you feel a little warm?
Mosquito: as a compact vampire machine, mosquitoes have been the most typical representative of blood sucking animals. For the victims, the presence of mosquitoes is usually be pestered beyond endurance in those areas, and epidemic diseases such as malaria or dengue, a mosquito is a serious health threat.
We all know that mosquitoes have needle like mouthparts, but in fact, the mosquito's mouthparts can be divided into 6 parts, respectively for puncture, skin and blood sucking bite victims. The mosquito's saliva contains anticoagulants, can make blood in the process of taking no condensation.
Only female mosquitoes suck blood because they need more energy to lay eggs. Another thing to note is that when the full moon strikes, mosquito bites increase by almost 500 times.
The vampire finch: a small sparrows living in Galapagos Islands, known as the "vampire bird", this is because their diet includes other bird species, the most common is the blue footed booby - blood.
The birds will peck other birds, and then lick the other injured out of the blood stream. However, blood is only part of their diet, they also feed on plant seeds, nectar, occasionally steal some bird eggs to eat.
Leech: This is a lot of people swimming in the summer when the nightmare. Leech blood sucking habits notorious, even the name of English (leech) have a "leech" meaning. In addition, it has been widely used in leech bloodletting therapy in.
As a member of animal phyla, leech has features like many other worms, such as androgynous etc.. Eats, the leech will use the sucker hook in the victim's skin, release the anesthetic, to prevent the victims found; these drugs also has anti clotting effect, can cause persistent wound bleeding. When the leeches suck full blood, will fall down automatically from the victims, slowly digested.
Leech is common in freshwater ecosystems, they will be in a variety of different species as host. The anticoagulant effect, the leeches adsorption wounds must continue for quite a long time to heal. It is worth mentioning that in the leech ends each have a sucker.
Vampire squid: This is a way of life in the 800 meters below the ancient creatures in the deep sea, is perhaps the most mysterious animal for this list. However, the list of reasons is the name of the vampire squid and the strange shape. The latest evidence shows that they may not be animal predators but deep sea scavengers, plankton algae and other marine organisms including seabed clastic debris remains -- for food.
However, it is undeniable that the vampire squid does have a frightening appearance, including a huge and scary blue eyes - and eyes as big as alleged that they have visual advantage in the dark sea. Vampire squid has a defense mechanism that is very special, in the face of danger, they will have a long tentacles out, cover your body to form a protective net.
Rhodnius prolixus: This is a kind of very aggressive predatory insects, some species, such as Rhodnius prolixus (scientific name: Rhodnius prolixus), is a vampire - hundred-percent completely with the blood for food. Triatomine is the main transmission of Chagas disease.
Contains the anesthetic composition triatomine saliva, so their bites do not feel pain. They are also called "kissing bug", sounds very romantic, but in fact, the name comes from their unique way: special vampire bites the face, especially the eyes and lips near the area of thin skin.
Bug: if there are worse than what the biological lamprey, it will undoubtedly city residents have bugs, the fear of these small insects. Like vampires, they come out at night, sucking on unsuspecting sleepers.
Bug uninterrupted bites can cause itching, rash and tension. They are usually hidden in mattresses and wood products, very difficult to eradicate. Those who are seriously affected by their clothing and bedding often burn, or even move.
In 1980s, due to the large-scale use of DDT, bedbugs basically disappeared from the western big cities. But in recent decades, bugs have soared in bedrooms around the world, even with new signs of resistance. When our ancestors lived in caves, bugs ate their blood, and for a long time they seemed to be as hungry as ever.