THE ORIGIN OF HUMAN BEINGS

In this video you can see the origin of humans beings and their evolution, while it began with the last common ancestor of all life, the topic usually covers only the evolutionary history of primates, in particular the genus Homo, and the emergence of Homo sapiens as a distinct species of hominids. The study of human evolution involves many scientific disciplines.

The evolution of life started with plants and animals that not exit actually, the evolutionary history of primates, in particular the genus Homo, and the emergence of Homo sapiens as a distinct species of hominids.

The genus Homo is Homo habilis which evolved around 2.3 million years ago; the earliest species for which there is positive evidence of use of stone tools. The brains of these early hominids were about the same size as that of a chimpanzee. During the next million years a process of encephalization began, and with the arrival of Homo erectus in the fossil record, with more cranial capacity. Homo erectus and Homo ergaster were the first of the hominine to leave Africa, and these species spread through Africa, Asia, and Europe between 1.3 to 1.8 million years ago. It is believed that these species were the first to use fire and complex tools. According to the Recent African Ancestry theory, modern humans evolved in Africa possibly from Homo heidelbergensis, Homo rhodesiensis or Homo antecessor and migrated out of the continent some 50,000 to 100,000 years ago, replacing local populations of Homo erectus, Homo denisova, Homo floresiensis and Homo neanderthalensis. Archaic Homo sapiens, the forerunner of anatomically modern humans, evolved between 400,000 and 250,000 years ago. Recent DNA evidence suggests that several haplotypes of Neanderthal origin are present among all non-African populations and Neanderthals and other hominids, such as Denisova hominin may have contributed up to 6% of their genome to present-day humans, suggestive of a limited inter-breeding between these species. Anatomically modern humans evolved from archaic Homo sapiens. The transition to behavioral modernity with the development of culture, language, and specialized technology happened around 50,000 years ago according to many anthropologists although some suggest a gradual change in behavior over a longer time span.

MIGUEL FERNÁNDEZ VIDAL.