The snakes are one of the most peculiar creatures: their extraordinary appearance, the original method of movement, almost all the excellent features of behavior, the poisonous appearance of many faces.
Snakes have a long cylindrical corpse with a poorly embodied division into head, neck, body and debt.
In the structure of the skull of snakes there are more typical and stable symptoms of these animals, distinguishing them from lizards. They provide exceptional stretchability of snakes' mouths, which allows them to swallow fully prey, which is important thicker than their bodies. The bones of both jaws and the sky are ligamented, allowing the snake's mouth to open so far that the snake has every chance of swallowing a solid prey completely. Due to the elongated shape of the body, snakes have a number of individual anatomical structures: one lightweight, ribbon-like kidneys, etc.
Sharp teeth are bent back and designed to grip and hold the prey and push it into the food tract, but not to chew or tear the prey.
Snakes crawl, bending the corpse. The belly covering shields lie on the back edges of the buddy and prevent the body from sliding backwards. There are no extremities, only the hind legs rudiments are saved in the form of small hooks on the sides of the rectum. The number of vertebrae varies from 141 to 435.
An important organ of the snakes' emotions is the tongue in combination with the organ of Jacobson. Eyes of snakes are deprived of separate eternity and covered with a real colorless shell, as a consequence of this every time look open. The snake's sense of smell is perfectly developed and works with it as one of the guiding emotions. The organs of hearing are severely weakened. Some snakes have thermal sensation organs or remote thermoregulators, which allow them to capture the heat coming from the extraction body at a distance. There is no eardrum. Sounds from the air are perceived weakly, more developed seismic hearing.
Feed relatively well with body volumes, solid prey. Some snakes (snakes) swallow live prey, others (boas) choke it with body rings, the third (poisonous snakes) - kill with poison. Poisonous snakes have 2 teeth of the upper jaw quickly differ in volume. They are joined together with mobile jawbones.
Poisonous teeth sit on the upper jaw in an upright position with the mouth open, and with a closed bend back. In 1 poisonous snake (vipers, rattlesnakes) poison flows through the channel from the inside of the tooth, in others (cobra, aspids) - a furrow on its plane. Poison is produced by special upper jaw glands. The more dangerous for a man are the bites of cobra, gyrus, epha, living in the southern regions of our country. The bite of the widespread vipers is not healthy, but it is not fatal. Common in many areas of the state does not contain any poisonous teeth.
Snakes or laying a testicle, or live births, are useful. In winter snakes of our fauna fall into hibernation.
In total, there are 3000 faces of snakes related to 16 genera and more than 450 families.
When determining snakes, for example, as in lizards, a weighty role is played by the peculiarities of the scaly body cover, in particular, the number and location of large individual headboards.
Quite frightening precedents about snakes, which are not the aristocracy
Almost everybody's afraid or doesn't like snakes.
There are 3 people like them: 1% of them love snakes (they take them on pens, play, wind them up at home), 94% would like to stay away from them. And there are 5% who fear snakes more than anything else in the world. Everybody has a friend like that: nod on every cord - oh, snake! And that's it, he's already screaming and killing in fear. It is easier to die with this than to stay in a room with snakes. But do we know almost everything about snakes? Most people don't understand almost anything - let's fix it.
In general, snakes kill people every day
Do you think it's a giant uniqueness and exotic - death by a snake bite? It is looking where to exist. In case you live in India - bad announcements: every year vipers and cobras bite more than 80 thousand people, and 10 thousand of them die. This is the most critical area in terms of energy and anger of snakes. It is clear that somewhere in Vermont there is less chance to meet a snake, but we beg you to watch your step wherever you are.
Is there any space on Earth without snakes at all?
The colder it is, the less snakes are. It is almost not dangerous to follow the Polaris around and in Antarctica, but you won't go on vacation there. Several snakes in Iceland, Ireland and Fresh Zealand. In some countries there are a lot of snakes, but, in the leader, the bulk is not poisonous. For you, the aristocracy is principally aristocracy, actually that the snakes themselves do not want to meet you, they avoid people of all their own strength. In general, there is also a wonderful way to avoid snakes: sit in your home.