The body is elongated without limbs. Body length from 10 cm to 12 m.
From legless lizards snakes differ a movable coupling of left and right parts of the jaws (which gives the ability to swallow prey whole), no moving of the eyelids and the tympanic membrane, lack of the shoulder girdle.
The teeth are sharp and thin, adnate to the edges of the jaw bones or connected to the jaw using special cords. Poisonous snakes have large, sharp, curved back teeth. These teeth have a groove on the front surface or internal channel through which the poison in the sting gets into the wound. Do Viper snakes because of their mobility shortened maxillary bones poison fangs can rotate 90°. Poisonous teeth in some cases (Gabon Viper) reach a length of up to 4,5 cm.
Snakes are distinguished by a large number of vertebrae (200 to 450).
The eyes are covered with a kind of “lenses” — fused transparent eyelids. External ears are absent, however, snakes can feel vibrations from the earth and sounds in relatively narrow frequency range.
Compared with other reptiles, snakes have the most developed body of thermal sensitivity, which is on the front hole between the eye and nose on each side of the head. I alkoholowych snakes turbolocator allow to determine even the direction of the source of thermal radiation. However, they perceive infrared radiation from surrounding objects, electromagnetic waves, namely as heat. Continue reading
The furry animal is very difficult to force to do what he is asked. Rather my cat will learn everything by imitation.
These animals are not only smart, and the memory of them is excellent. They remember where their food and are well able to produce it ourselves, following, as I open the door people, and to repeat the procedure the foot. If you ever open the door “meow”, the cat will remember it and next time will ask her to open exactly the same way.
So what breed of cats are the most intelligent? And is it possible to identify someone by awarding a gold medal of excellence?
To date, the most intelligent in the world are considered to be Siamese cats. Their appearance is admired. And sky-blue eyes are intelligent and piercing, and cause you to fulfill any desire.
Siamese cat is very affectionate to people and loves communication. She is affectionate, lively, intelligent, loves children. We must not forget that this breed is highly jealous. The Siamese also differ curiosity and can change tone of voice to explain what she wants.
Orientality could not get a rating of the most intelligent breeds of cats. Look at the breed’s slim, elegant, flexible, but very strong. And his eyes have a very lively sparkle.
Oriental breed kasekuchen friendly. And the ability to bind to the host is amazing. Continue reading
Pets always bring home a lot of joy, so today almost every house boasts of your pet. Some people prefer to have a quiet and peaceful fish, someone more like funny rodents, well, someone decides to have a real friend – a dog or a cat. Exotic Pets are increasing in our homes.
There are also people who wish to have at home an exotic other, for example, status in society or simply for the love of a specific animal.
However, they do not think that most exotic animals are not suited to life in captivity, therefore, as a rule, in such conditions they live only a few years or even less. This article will talk about what exotic animals are most common among Pets.
Exotic Pets – a tarantula
This giant spider is known to all. Tarantulas are considered to be dangerous spiders, though not actually represent a particular threat to humans. Tarantulas are rarely aggressive and their venom can generally be considered harmless for an adult person. Poisonous tarantulas are never sold in pet stores and to go into the jungle after them, hardly anyone will want. Choosing this giant, it should be remembered that males in captivity can live for only two years, while females can live even twenty years. Continue reading