Homo erectus traits Homo erectus features. Characteristics Homo sapiens. Australopithecus features.

Australopithecus had an average body of more than 40 kilograms, a brain volume greater than 500 milliliters, a tall stature, walked upright, and used natural tools, unable to make tools.

Able people have thin skull walls, inconspicuous caudal crest, an average brain size of 637m, lower limbs, walking upright, height, and can also make stone tools.

Homo erectus, with a brain volume of less than 1000 ml and an average height of 160 cm, walked upright Homo sapiens, not only preserving natural fire, but also learning to take fire artificially and walk upright.

The earliest Australopithecus afarensis, which appeared less than 4 million 3 million years ago, has a very small brain capacity, and the males are significantly larger than the females"Lucy"The skeleton of a young female Australopithecus australopithecus was excavated in Isobia in 1974, and because the skeleton was relatively complete, it was possible to establish the walking form of Australopithecus: standing with its feet upright and staggering, scientists analyzed the shoulder blades and arm bones and found that Australopithecus still maintained the climbing characteristics of its primate distant ancestors.

Australopithecus africanus was later discovered, presumably 145 cm tall, with an average weight of 65 kg for males and 35 kg for females, with a brain volume of one-third that of modern humans.

1。Stand upright on your feet, staggering.

Stand upright on your feet, staggering.

2。The first early member of the genus Homo.

3。They already possess the characteristics of a human being: they can make tools, they can walk upright, but they have less brain capacity, and their heads retain more of their primitive properties.

4。Not only can they save natural fire, but they also learn to make fire artificially and walk upright.

Australopithecus, the common ancestor of humans and humanoids, began to evolve in different directions.

Australopithecus. The common ancestor of humans and apes, Australopithecus began to evolve in different directions. Australopithecus acquires an upright state, with primitive tool-making and simple communication of language and gestures.

Because the laryngeal structure of Australopithecus is not suitable for pronunciation, it can only communicate with vocalization-like language and gestures, which is also the biggest difference between humans and Australopithecus.

Capable stage. At this stage, the brain size of the ape-man doubled to more than 800 cubic centimeters.

Homo erectus. Cooked meat eaten provides more energy than raw meat that can be eaten.

Homo sapiens. Human beings have a certain cognitive and emotional response to death.

Test Topic: The Origin and Evolution of Humans Special Topic: Analysis:

Human origin forest Australopithecus, ancient humans in the process of development, through the development of Australopithecus australopithecus, Homo erectus and Homo sapiens four stages, according to the answer Human evolution is usually divided into: Australopithecus, Homo erectus, Homo erectus, Homo sapiens four stages Among them, Australopithecus can use natural tools, but cannot make tools; Capable people can make simple tools (stone tools); Homo erectus made stone tools for different purposes and learned to use fire, which was the most critical stage of human evolution. Homo sapiens has learned to make fire artificially, and can make fine stone and bone tools So choose :c Comments:

With regard to human evolution, we should focus on the characteristics of the four stages of evolution

Human evolutionary sensitivity codes are usually divided into: Australopithecus.

The four stages of Homo sapiens, Homo erectus, and Homo sapiens Among them, the ancient bridge in the south or which ape can use natural tools, but cannot make tools; Capable people can make simple tools (stone tools); Homo erectus made stone tools for different purposes and learned to use fire, which was the most critical stage of human evolution. Homo sapiens has learned to make fire in clusters and to make fine stone and bone tools

Therefore, c

From small to large brain capacity, Homo erectus will gradually use tools, Homo erectus will begin to use fire, communication and collaboration skills will increase, and Homo sapiens will use language to communicate and have works of art. Homo erectus was partially buried, indicating that complex emotions had begun to be presented.