When did the ancestors of humans die?

Anthropoids Scientists Discover Earliest Human Ancestors A French team found fossilized bones and teeth of ancient humans in Kenya last year, and after research, scientists found that these may be the earliest ancestral remains ever discovered. Researchers have shown the fossils to the world, pointing out that they are older than Lucy, an ancient human fossil found earlier, and that they may be more than twice as old as Lucy. This discovery will add more topics to the already fierce debate over the origins of mankind.

The fossils, which include 12 bones and teeth, were discovered last year in central Kenya and prove that Lucy did not have the true ancestor of humans. The latest discovery was announced at a press conference in Paris, and a week later scientists will name the fossil and officially announce the finding. The oldest human fossils previously discovered were found in Ethiopia, 4.5 million years old, and the 3.2 million-year-old Lucy fossil was found in Ethiopia in 1974 and belongs to another branch of the human ancestral map, but some scientists disagree.

Now, these newly discovered fossils prove that the apes were just able to stand up and walk, and that it is likely that Lucy was just a strange-looking ape. Resources.

A team of scientists from the United Kingdom, China and the United States published a joint study in the latest issue of the American journal Nature that they have found a 400-million-year-old fish fossil in Yunnan, China. This suggests that the ancestors of terrestrial vertebrates, including humans, may have first appeared in China. In the same place, scientists have also found a number of other fish fossils, all of which have been discovered for the first time.

Scientists are studying these samples, and the new findings will provide useful clues to the origins of terrestrial vertebrates. Scientists previously believed that marine fish were the common ancestor of terrestrial vertebrates. Scientists from Keene University in the United States, who participated in the study, said the fossil fish was more primitive than scientists expected.

This suggests that human beings may be more primitive than we used to think. Archaeologists believe that the 400-million-year-old fish is the common ancestor of modern fish and total-finned fish. Professor Allberg of London's Natural History Museum said it now appears that the most primitive and oldest total finfish came from China.

This discovery may indicate that humans originated in southern China.

The ancestor of humans is Homo sapiens (scientific name: Homo sapiens), the only living species of the genus Homo.

Homo sapiens (scientific name: Homo sapiens) is the only living species in the genus Homo. The morphological characteristics are more advanced than those of Homo erectus.

It is divided into early Homo sapiens and late Homo sapiens. Early Homo sapiens used to be called homin, lived 250,000 40,000 years ago, and was mainly characterized by a large brain volume, more than 1,300 ml; The brow crest is well developed, the forehead is sloping, the occipital region is prominent, the nose is wide and flattened, and the jaw is protruding. It is generally believed that Homo erectus evolved from Homo erectus, but it is disputed that Homo erectus became extinct after the later rise of Homo sapiens (modern humans) out of Africa or before that.

Late Homo sapiens (new humans) are anatomically modern humans. It began to appear about 450,000 years ago. The main morphological differences between the two are the reduction of the anterior teeth and face, the weakening of the brow ridge, and the increase in skull height, which is more pronounced in modern humans.

Late Homo sapiens arms were no more than knees, body hair was degenerated, there was language and labor, and there was a social and class character.

The site where early Homo sapiens fossils were found

Ancient humans lived between 200,000 and 50,000 years ago. Today, there are more than 70 early Homo sapiens fossils found in the world, and there are two locations in the world: one is Gibraltar, Spain, and the other is the Neanderthal River valley near Dusseldorf, Germany.

The other was found in a cave (including the skull of an adult male and some fossilized limb bones, lived about 70,000 years ago), discovered in 1856, and because the fossilized skull of Gibraltar did not attract attention until 1864, the earliest attention was paid to the human fossils found in the Neanderthal Valley. Therefore, in the past, paleoanthropology used to refer to early Homo sapiens fossils as Neanderthals (Homo sapiens neanderthalen-sis).

Humans knew about the existence of their ancestors in 831 A.D.

The ancestors of humans were apes. Apes began to emerge in the Oligocene, about 30 million years ago. However, not all apes are direct ancestors of humans, some apes are uncles of humans, and some apes are uncles of humans.

The apes, which anthropologists consider to be the ancestors of humans, appeared very late. That is the Rama ape named after Rama, a heroic prince of the ancient Indian epic poem Tong Shu Song (Rama's translation is now unified as Rama).

They lived about 10 million to 15 million years ago. Rama apes were first discovered in Mount Sivalik, India, Pakistan. In the late 60s of this century, Rudaaucus found in the Early Eocene coal seams of Hungary also belonged to Rama ape.

The ancestral land of mankind: Perhaps not Africa, the Tibetan Plateau has found million-year-old human sites.

Judging from the human fossils that have been discovered, the evolution of human beings can be roughly divided into the following four stages:

1) Australopithecus stage.

Australopithecus australopithecus has been found to have lived between 4.4 million and 1 million years ago. According to the study of the anatomical features of fossils, the most important feature of Australopithecus that distinguishes it from apes is its ability to walk upright on two legs.

2) Capable person stage.

2,000,000 BC-1,750,000 BC. Homo sapiens fossils have been discovered in Tanzania and Kenya in East Africa since 1960. The first Homo hoans existed 1.9 million years ago.

Homo habilis is classified under the family Homo homo. Homo sapiens had significantly larger brains than Australopithecus australopithecus, and could use stones as materials to make tools (stone tools), which gradually evolved into Homo erectus.

3) Homo erectus stage.

Homo erectus belongs to the homo genus homo erectus (homo erectus), referred to as Homo erectus, commonly known as ape-man. Homo erectus fossils were first discovered in 1891 in Java, Indonesia. At that time, there was also a debate about whether it was a man or an ape.

It was not until the 20s of the 20th century that the fossils and stone tools of Peking Man were discovered in Zhoukoudian, Beijing, which established the position of Homo erectus in the history of human evolution. Homo erectus lived from about 1.7 million years ago to more than 200,000 years ago. To date, Homo erectus fossils have been found in Asia, Africa and Europe.

4) Homo sapiens stage.

Homo sapiens is generally divided into early Homo sapiens (ancient Homo sapiens) and late Homo sapiens (modern humans). Early Homo sapiens lived between 200,000 and more than 100,000 years ago. Late Homo sapiens began about 100,000 years ago.

Its anatomy has been basically similar to that of modern humans, so it is also called modern humans in anatomical structure.

Extended Materials. The theory of the African origin of modern man is generally accepted in Europe, but there are still many scientists who hold different views, especially those of East Asian and Chinese scholars.