What is reptiles?

What Does reptiles Mean

A reptile (or reptile , according to another form accepted by the Royal Spanish Academy ) is a vertebrate animal that lacks or has very short legs , so that, when walking, it rubs the ground with its belly. These are animals that can be oviparous or ovoviviparous and have a variable temperature.

Reptile skin is covered with keratin scales , a protein substance that is rich in sulfur. In this way, reptiles can live in very dry habitats, such as deserts.
These vertebrates have a pulmonary respiratory system and communicate in various ways, either through the emission of sounds, visually or through pheromones.

Reptiles form one of the evolutionary branches of the amniotes . They arose in the Carboniferous period from the tetrapods , the clade of vertebrates with four limbs.
When it comes to classifying reptiles, two large groups are usually established, which are called anapsids and diapsids. The first of the aforementioned we can state that it is basically made up of turtles while the second is made up of two other different groups: the archosaurs and the lepidosaurs.
Among the animals that fall within the archosaur typology we would have crocodiles. These are divided into fourteen species and their main hallmarks are the fact that they have a life span that can reach up to 80 years, that they have hard and scaly skin, that they feed on a wide variety of animals and that they choose as habitat tropical places such as, for example, those that exist in Africa or America.
Currently we are faced with the fact that crocodiles are subdivided into two large families: the mekosuchinae and the crocodylinae. The first of them has recently become extinct and was made up of species that could be found in both Australia and Oceania.
In the case of the second family, what must be emphasized is the fact that it is made up of reptiles such as alligators, alligators or gharials.
Returning to the second group in which we divide the diapsids, the lepidosaurs, we have to state that it is basically made up of three clearly defined species: the tuataras, which are similar to iguanas and found in the New Zealand area; lizards and snakes.
The lizards or lacertilians form the suborder wider reptiles, to the to include lizards , the iguanas and chameleons , among other animals. There are currently an estimated 5,000 species of lizards.
The snakes or snakes are another suborder of reptiles, in this case characterized by the absence of limbs and the elongated bodies. There are species of snake that have poisonous bites.
Another suborder within reptiles are turtles or chelonians , which have a shell that protects their internal organs. Turtles do not have teeth: their jaw appears covered by a horny beak similar to that of birds.

Go up