Legless lizards.

World Wildlife perfect so that, knowing it would seem, a huge number of species, families, classes of animals, insects, fish, reptiles, birds, and seeing their extraordinary uniqueness, we would never be able to know everything about them.Studying alone, humanity loses the appearance of new instances, exploring the other - becomes obsolete rare representatives.

The variety of reptiles always staggering inhabitant.The number of lizards on the planet, according to scientists, more than 4,000 well-known and more or less studied species.Of these, 3500 - this is the most significant and widespread group, which includes about 300 genera and 20 major families.

So legless lizard - is amazing representatives belonging to the family of creeps detachment called scaly.

structure

lizards have this type of missing holes, responsible for hearing.Kostnoobrazovannye plates disposed beneath the surface of the scaly skin is fragile and poorly developed.Of course not all.Eyelids are very mobile, the eyes themselves are small.The jaws are rigidly coupled.Doug temporal region no.

Lifestyle

main place of existence in everyday life for them is sandy soil.Here under the ground lizard looking for a food break through the tunnels in the ground, breed.On the earth's surface, they practically do not leave, preferring to "dark" and comfortable home.

Living in terms of the prevalence of soil with vegetation, they do not suffer from lack of food.Being inside the ground or hiding under stones, they quickly respond to the movement taking place on the surface.And thanks to the quick reaction to grab the intended "lunch" is not too difficult.

The legless lizards eat

Ā«Legless person" are predators.Their diet is rich in a variety of insect larvae, earthworms, spiders and other invertebrate groups.

Progeny

Legless lizards per ovoviviparity bring about 4 young cubs.The ability to bear offspring comes from them 2.5 - 3 years, at the age of full sexual readiness.

evolutionary and biological development of the form

most ancient kind of lizard found in India, became the Indiana Tikiguaniya Estes.Her age at the time of detection has made almost 220 million years.Researchers concluded that the remains of a lizard can be attributed to the period of 3-4 late type.A place where for the first time found a similar kind, is considered a historical artifact, a natural compound formed later soil layers.

Legless lizard later periods phylogeny were not found.In the historical development could survive only large individuals.

Types legless lizards

Lizards, as well as snakes, belong to a well-known scientific zoology class - "reptiles."However, they pronounced the external similarity does not speak about the identity of the natural.Primarily snake usually have the ability to produce toxin.In lizards, it is often not available, except in rare species of large representatives.Great diversity of reptiles science poses difficult challenges.But over time, experts still cope with them.

one existing genus includes two main types:
1. California legless lizard.
2. Dzheronimskaya legless lizard.

Due to the sometimes indistinguishable similarity with dangerous snakes, lizards data types suffer.People do not understand the nature of reptiles, kill them without much pity.

Californian Lizard has a body length of about 20-25 cm. The color of the body is usually light brown or greenish-smoked tint.In the back and in the sides have dark narrow lines.

in the forest zone of European Russia, including the nature of the Caucasus, legless lizard, common veretinitsa (verdigris).In the southern part of the country is spread legless lizard glass-lizard (grouse).In the above two reptiles missing limbs.Getting around the surface of the earth is due to the body's ability to crimping.Torso and head are connected tightly interception in the neck is completely absent.

Legless lizard anguis eats larvae of insects, worms and small shellfish.Due to the sharp teeth and jaw rigid structure, it clings firmly, and keeps the prey, eating it while slowly.Any shellfish anguis always be able to get out of the shelter, no matter how far it may hide.Lizard carefully crawls into a shell, gradually eating prey from the inside, from the beginning to the end.

glass-lizard is one of the largest representatives of legless.

Another lizard, which has no legs, refers to a genus called "sepsofis."This species was discovered in the 70s of the 19th century in one of the states of India.

How to distinguish a lizard from a snake?

Existing lizard in the world, deprived of the feet, causing a lot of people have doubts, who are often interpreted incorrectly.In the historical stories of religious origin says that once all the snakes had legs, but for his deeds in the world, they were doomed to eternal damnation, to make them crawl and grovel.According to this myth, that's when the snakes lost their legs forever.Most interesting is that most scientists evolutionary biologists to some extent agree with the opinion that the legs reptile snake really were.Only here the loss of limbs, in their view - is, first of all, the fact caused by the movement of the evolutionary process of natural selection.As a result of which have no legs was a great advantage in helping to successfully exist in the framework of nature for a long time.For example, the Viper of course not at all, but from ordinary species of snakes in the pelvic area can be seen small appendages with small claws, resembling immature legs.

In addition to the above, we would like to define the criteria by which to distinguish the lizard, which has no feet from the snake will be easy:

1. Mobility century.Do snakes ever and are static, they are dynamic in lizards.
2. Neck belt.Lizards constriction is almost impossible to identify a snake as it is visible to the naked eye.

Please note that, despite the ease of determining the kind still pick up an unknown reptile species you should not.Private security and excessive caution often saves us from going to the hospital.