General, Research, Technology

Discovered remains of human ancestors change our understanding of the evolution of Homo Sapiens

In Indonesia, the remains of Homo erectus -Homo erectus. It is believed that Homo erectus became extinct before modern humans evolved. Researchers believe that the results obtained in the course of the work published in the journal Nature confirm the data on when exactly these human ancestors disappeared. Fossils were found on the Ngandong site, the first excavations of which took place in the 1930s. Then a team of scientists discovered 25 thousand fossils, among which 14 belonged to Homo erectus, including 12 skulls and two legs, and the rest - to animals.

This discovery forces researchers to rethink their views on the course of human evolution.

Previous studies discoveredThe fossils in Ngandong were dated differently. This led to confusion, as some dating methods showed a figure of 53 thousand years ago, while others - at 530. Today, thanks to improved dating methods, researchers were finally able to find out the exact time period of extinction. Note that research on this issue started back in 2006. Now, by joining forces, scientists finally managed to find out the truth.

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Long story

First fossil remains on the island of Java inIndonesia was discovered in a place called Trinil in 1891. Since then, about 200 fossils have been found in Java. The most ancient fossils of Homo erectus in Java date back 1.7 million years ago. Determining the age of the youngest fossils shows that Homo erectus walked the Earth longer than thought. Note that Homo erectus are the earliest ancient people with a body proportion resembling Homo Sapiens. In addition, the bipedal skull was larger than that of other ancestors, which is why Homo erectus is called the most advanced species of ancient people.

Homo Erectus body proportions are similar to modern humans

But if Homo erectus lived much longer thanwas it supposed that they had died out? A new study sheds light on this mystery, calling the main reason for climate change. The fact is that the remains of a bipedal man were found with a collection of fossils of animals that lived in an open forest environment similar to Africa. Over time, the environment in Ngandong has changed and the rainforest has replaced the open forest area. After these events, no remains of an erectus were found, which indicates that Homo erectus probably could not adapt to climate change.

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Mass extinction?

Another intriguing point in the study isthe question of possible mass deaths of people and animals. A large number of the remains were washed by flooding to the place where they were found. Researchers do not know what caused this event, but given the climate change in the region, there are many theories, including a landslide caused by a volcanic eruption. According to CNN News, this discovery changes our point of view both on bipedal man and on human evolution.

Excavations on Java

In general, Homo erectus disappeared withfaces of the Earth 108 - 117 thousand years ago. The new timeline helps to establish that Homo erectus did not intersect with Homo Sapiens, as modern people appeared in Java until 35 thousand years ago. But this suggests a possible interaction with other species: for example, Homo denisovan - a mysterious ancient human ancestor, known only by a few bones. However, the authors of the study believe that it is difficult to prove the exact dates of the disappearance of a bipedal man. Small groups of Homo erectus may have lived longer, but left no trace.

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