Ardipithecus Ramidus

[Name of the Institute]

Ardipithecus Ramidus

Introduction

Knowledge of Human Origins has followed a parallel course to the history of the discoveries of hominid fossils. Since the first Neanderthal to the oldest hominid known at present and aim of this work, Ardipithecus ramidus, there have been many discoveries have opened new lines of research have allowed more precise the questions of what, how, when, where and why the protagonists of human evolution. Estimates based on molecular biology and the fossil record suggests that a core separated the different ancestral lines leading to modern apes closest to man and ourselves. To these branches of the common stock being considered the following dates. The first part was the gibbons, about 24 million years. Then the line was different has led to the current orangutan, about 15 million years. After gorilla, was around about 8 million years old, and finally, a line from which emerged the two species of chimpanzees, on the one hand, and on the other line of hominids, just over 5 million years in Africa. It follows that there must be a fossil record of a lineage, or group of lineages of hominids that extend from about 5 million years to the present. Today it is accepted that existed within the family of hominids, four genera with several species different turn, which define the different lineages of the phylogenetic tree of our family (Hardt, Henke, Tattersall, 2007).

Linnaeus Classification of Species

Linnaeus (1707 - 1778), the inventory of goods or goods of nature, established what he called "Systema Naturae" or system of nature, which established a classification of animals and plants, their species, principle, according to the degree of similarity appeared between them. However, eventually establishing the existence of family or community of origin between species. Thus, for example, placed man among vertebrates in general, particularly mammals and primates in particular, along with the monkeys. The man is an animal product of biological evolution. Man has not always existed on earth but appeared in relatively recent. Like any other living species, the human species represents the end of a long series of transformations of an evolutionary process. The fact of the appearance of man is the most significant case of biological evolution because, once made the characters who made it. There was an inflection or qualitative change in trend. There was the emancipation of biology to give way to the unique cultural evolution of man. This is no longer evolves in terms of individual but of society and influences the whole process explained above. So says Faustino Cordon in his book The Nature of Man in the light of its biological origin, when he says; "The emergence of man no less that culminates and closes the evolution of animals. Man is an animal (an animal genuine supra-cellular an individual directly), but we can say that is no longer an animal species (Lockwood, Stringer, 2008).

Unlike animal species, characterized precisely by the fact that each one evolves by the selection of individuals exerted by a given set of other, man ...