The snakes change their skin every month or every two months, when they grow up, when the skin is old and very tight and when it is scratched and worn. During this change, isolate themselves and are moving slightly.

  An oily substance expands between the old skin, which becomes dry, soft and tender and the new skin underneath. To take off the old skin, the snake rubs its head against a rough object.

  The snakes kill their prey in two ways: some species, such as snakes, poison using - they bite their prey with sharp teeth and inject the poison. Other species such as pythons strangle their prey screwing part of your body around them.

One of the factors to define the danger of bites is the amount of venom the snake can inoculate the prey. Quantities can be fatal to small prey, do not cause more inflammation than in larger animals or more resistant.

Every year a million people are bitten by snakes and serpents of which 30,000 to 40,000 of them die as a result of bites and venom injected.

A dose of snake venom-hood is enough to kill 10 men.

The Sand-viper of Europe has in front of each eye holes that are nothing more than channels of perception in the dark. These channels are used to locate warm-blooded animals (through body temperature) during the night or are hiding in holes or under the ground.

  The snake-Ratter is the largest in the Iberian Peninsula and can reach 2 m in length.

             The python can reach 4 m
.Gabriela P.
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