A documentary about rattlesnake
Rattlesnake - description
Rattlesnake is a family of snakes of the family of viper, living predominantly on the American continent. They are typical that they have crooked roots at the end of their tail. They gave the name to the entire genus, which includes 29 species.
They occur in America and South and Southeast Asia. Unlike vipers, there are thermoreceptors on the head (specifically between the eyes and nostrils) that can detect even slight temperature differences and allow them to search safely for food that most of the warm-blooded vertebrates are. Similar abilities are equipping unrelated boars and pythons, but these are unlike rattlesnake, labys calcareous holes (located along the "lips"). True rattlesnake is one of the youngest evolutionary snakes. They form a very diverse group of snakes, among which can be found large (rattlesnake diamond - up to 2,44 m) and small snakes (barely around 50 cm).
The American representatives of the genus Crotalus and Sistrurus have at the end of the tail the rhubarb, which gave the name of the whole group. These are stubborn articles that have a snake at the tail end. In case of disturbance the shake shakes the tail and produces a strong barking sound that serves as a warning to the other animals not to come closer. The other rattlesnakes (rattlesnake, shrubs, swimmers, ...) do not have the rhubarb. Representatives of the genus Sistrurus have large, symmetric labels on the top of the head, while the Crotalus snakes have scattered headings on small scallops.
Some species often behave in captivity and regularly reproduce. A Brazilian rattlesnake often grows up to 1,5 meter and is very beautifully colored. The most commonly used are beautifully colored tree species, which grow up to one meter. Their toxicity is not too high, yet they must be treated with extreme caution. They are vegan-born and live in captivity well-multiplied. Rarely, there are some species of shrubs from Central and South America and sinkers who are found in America, Southeast Asia and Southeast Europe.