Why the lizard rejects a tail?
of the Lizard are food for many birds and animals. In this regard the most important way of self-defense - camouflage coloring, ability to stiffen not movably and to evaporate instantly. However, when these ways are powerless, some reptiles resort to need of rejection of a tail.
A tail separation - very difficult way of protection. Parting of a lizard with it depends on degree of the danger menacing to an animal.
Process of a separation directly depends on the sizes of a lizard. Large and sluggish animals reject the most part of a tail, than small and fast. But, not all lizards possess ability to lose a tail. It appears, its rejection - not the so reflex and even not instinctive act as consider many. It is completely controlled by brain hemispheres whether also the lizard is capable to choose time of farewell to the tail or still not came.
The majority of tails has cross zones of a gap on hryashchik of a backbone, muscles and ligaments. In case of danger when a lizard are enough for a tail, ring muscles in this zone are reduced and broken off. Other way of a separation - more primitive. It consists in a fracture of vertebras. But in this case the necessary attribute is much more difficult to grow.
At rejection of a tail, there is a convulsive automatic reduction of muscles. The tail jumps aside, twitches and in any ways tries to distract the wondering fan to regale on lizards. At this time the being owner of a tail promptly “ does legs “. It is thought, not to one generation of lizards, it saved life.
Some iguanas can reject a tail only in youth, with age this ability disappears forever. The new tail is similar on old, but on the place of a change a sharp-sighted eye will notice narrowing or other shade of coloring. By the way the tail of a lizard is painted more brightly, than other parts of a body. It can be bright - green, violet, red, yellow and even with contrast spots and strips.
Tail vertebras after a separation are not restored and replaced with a cartilaginous core. Therefore if to will seize an unfortunate animal by a tail once again, the gap will be higher previous (and and it is possible to reach the head!)
is required to the Majority of these small, brisk reptiles on restoration of a tail more than a month. Regeneration can take the whole year large individuals.
The lizard without tail loses a set of pleasures in the life - she can lose ability to reproduction, badly runs and climbs from - for absence “ equilibrium wheel “ water cannot float more, and are forced to change the way of life. But the main thing - at many lizards in the tail collects fat and nutrients and consequently all energy is concentrated in the tail. Therefore after its separation the animal can die of starvation. The fact that subsequently the rescued lizard tries is connected with it finds the tail and to eat it to fill the lost energy.
It is interesting that the animals living in zoo terrariums so trust employees that they allow to catch themselves for a tail and do not leave the precious jewelry in hands of the person.
Generally before to grab a small lizard a tail, and then it is proud to show all the trophy, think of the subsequent destiny of an animal. And at all it is better to touch nobody, and just to observe - then you learn much more about sacraments of the nature.