When did the first human appear

The human history It is long and has a large number of facts, but without a doubt one of the most relevant is its origin. The origin of the human being is the end of a biological evolution that lasted for centuries, being descendants of an endless number of different species. To know where we come from, in this lesson from a TEACHER we are going to talk about when did the first human appear so that you know better our history as a species.

Index

1. The ancestors of the human being
2. The first Homos
3. Homo Sapiens

To understand the origin of the human being we must go back to our ancestors, that is, the first species with characteristics common to ours and that, therefore, are of those that we come from. The origin of the human being can be found in the first hominins, a sub-tribe of hominid primates characterized by being bipedal and having an upright position.

The first hominids date back to 7 million years ago and they exist three species different, which are the following:

• Sahelanthropus tchadiensis: 7 million years old
• Orrorin tugenensis: 6 million years old
• Ardipithecus: 5 million years old

It is known that these early hominids had a problem with the shape of the foot, so they could not walk long distances in a bipedal way. There are numerous studies that speak of the possibility that these three species they weren't quite bipedal. The first species of which we have complete evidence that it was bipedal is Australopithecus.

Our knowledge of this species is based on the fact that numerous skeletons have been found complete, such as the famous "Lucy", and therefore the study is much larger than in species previous. The Australopithecus They lived in the savannas of East Africa around 4 million years ago.

Australopithecus lived around 1.5 million years in Africa but a profound climate change caused them to evolve into two different species. Australopithecus that based their diet on vegetables became Paranthropus, while those who based their diet on meat evolved to the first Homos.

Image: Youtube

The genus Homo is the one that includes those bipedal hominids, with the vertical skull and that they are trained to create and use different types of tools. Within this genus we find human beings, that is, the homo sapiens, being the only species that still exists of the genus. But to understand when the first human being appeared, we must talk about the first homos, that is, the ancestors of the homo sapiens.

Of the first Homos we must highlight the Homo habilis and Homo rudolfensis, which made the first tools of the genre, inhabiting Africa between 2.4 million years ago and 1.8 million years ago. Their successor was Homo ergaster, who is considered to be the first of the Homo sapiens ancestors to leave Africa and emigrate to Eurasia.

The great migration of the Homos caused that Homo ergaster two dynasties arose, Homo erectus in the East and Homo cepranensis in Spain and Italy. From these two new species emerged such as the Red Deer Man, which spread throughout Eurasia.

To conclude, we must talk about Homo heidelbergensis and Homo rhodesiensis, ancestors of Neanderthals and Homo sapiens respectively. The neanderthalsThey are an evolutionary line parallel to Homo sapiens, being a species that lived at the same time and was extinguished by competition with sapiens.

Image: britannica.com

The Homo sapiens It is a kind of hominid with great mental capacities, which allow it to perform such complicated tasks as speaking or the invention of complicated instruments. Homo Sapiens is the species we know as Humans.

There are numerous theories about the origin of Homo Sapiens and how it spread throughout the world, but in this lesson we are going to talk about the most accepted, the one that speaks of its origin in Africa and its subsequent expansion throughout the rest of the world. balloon.

There is no total acceptance of where in Africa the human being was born, being numerous the regions where it is believed that Homo Sapiens could originate. But it is almost certain that the human being was born in East Africa and maintained this position until 120,000 years ago, when a migration to the south of the African continent began.

The first great migration of Homo sapiens happened 70,000 years ago, when they emigrated to Eurasia, from where they would begin to occupy the entire planet. From Eurasia they passed to America over the years, and finally to Oceania, ending human migrations around the world.

Image: The Reason

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