Is the moon our hometown? It is said that we are from Virgo, a constellation more than 65 million light years away from the earth.

About the origin of mankind

So far, the academic views on the origin of human beings are still not unified. After hundreds of years of research and debate, most scientists now agree that the African continent has undergone drastic crustal changes, forming a huge valley. The fault valley starts from Tanzania in the south, passes through the whole East Africa in the north, and reaches Palestine and the Dead Sea, with a length of 8 000 km. Great changes have taken place in the ecological environment on both sides of the broken valley, and the local forest apes gradually divided into two branches: the forest apes still living in the forest environment gradually evolved into modern apes; Due to the reduction of forests, forest apes living in the eastern highlands of fault valleys often have to come down from trees to find food. Due to the variation of body structure and the change of environment, the habit of walking with lower limbs has gradually formed, thus gaining great development opportunities in the long years to come. Until about 2 million years ago, there were ancient humans who walked upright and could make and use tools. Anthropologists call them Homo erectus. In a word, human beings originated from forest apes and generally appeared more than 4 million years ago. According to the discovery of early human fossils in Africa, it can be considered that human beings originated in Africa. In addition, some scientists' comparative study of human mitochondrial genes and genes on Y chromosome in different regions and African genes also supports the view that human beings originated in Africa and migrated to different regions of the earth.

In the past century, with the continuous discovery of new human fossils, the evidence about the origin of human beings has been increasing. Through the analysis and study of these fossils, people gradually understand the general outline of human beings from appearance to development into modern people.