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MEANING OF VERTEBRATE ANIMAL

The animals are specimens of species that make up the kingdom Animalia. Among its characteristics are its autonomous ability to move and the fact of reproducing sexually.

According to DigoPaul, vertebrate, on the other hand, is an adjective that comes from vertebrātus and is used in the field of zoology. The term allows to name those living beings that have vertebrae (the bones that make up the spine or spine).

This allows us to point out that a vertebrate animal is a living being from the Animalia kingdom whose skeleton is made up of a certain number of vertebrae; that is, it has a spinal column. Vertebrate animals also have a skull and a central nervous system.

Specialists claim that there are more than 60,000 species of vertebrate animals. Among them is Homo sapiens which, when it reaches adulthood, has 24 vertebrae.

It is important to highlight that vertebrate animals are not only on the earth's surface: there are also numerous aquatic animals that have vertebrae. At a general level, it is possible to recognize three different areas on the body of this class of animals: the head, the trunk and the tail.

Vertebrate animals are believed to have arisen in the Paleozoic era, as part of a stage known as the "Cambrian explosion. " The first vertebrate animal would have been the Myllokunmingia, but there are no details on its characteristics. This animal is estimated to have lived about five hundred and twenty-five million years ago.

It should be noted that the group of animals that do not have vertebrae is called invertebrates. In this set are insects, worms and other animals.


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