The difference between prehistoric humans and archaic humans

Today, scientists generally believe that in nature, human intelligence is the highest among all animals.

Although humans and other animals compared to the body is not strong and tall, not to mention the swift speed, move to kill the enemy's sharp claws and teeth, and excellent night vision, these factors do not prevent humans with a high IQ to become the natural enemy of all creatures.

Modern Homo sapiens with a high IQ firmly at the top of the biological chain scientists believe that this situation has existed for at least 80,000 years or so, prehistoric humans through which, for example, saber-toothed tigers, cave bears, mammoths, and other horrible creatures will also become prehistoric human belly food.

But there are times when people are often blindly confident. South African scientists led by archaeologist Julia claim that during the Pleistocene period tens of thousands of years ago, human ancestors, although they crushed other animals in terms of intelligence, also fell into the plate of other predators from time to time.

These prey on human animals include spotted coyotes and saber-toothed cats under the family of creatures, such as destruction saber-toothed tiger, slender blade tooth tiger, deadly blade tooth tiger, and other creatures. And previously scientists believe that wherever primitive humans and saber-toothed cat families coexist, these cat families will be rapidly extinct.

These felines, a long-extinct creature known for the extra-large saber-toothed canines in their mouths, were once widespread on the African continent more than 2 million years ago.

Such animals were indeed the ultimate nightmare for primitive humans for quite some time during human evolution. Archaeologists have found saber-toothed feline bite marks on many ancient human fossil bones.

Scientists believe that animal tooth enamel consists mainly of calcium and phosphate, but also contains a small number of carbon isotopes, using the characterization of carbon elements, allowing scientists to understand the habits and eating habits of long-extinct creatures.

In general, carbon is somewhat more abundant in grasses than in trees and shrubs, so the characteristics of carbon isotopes in grasses, trees, and shrubs are very different. Along this line, Professor Julia found that herbivores contain more carbon than tree and shrub eaters.

To determine which extinct carnivores fed on primitive humans, scientists had to determine what foods early primitive humans fed on. After a long period of examination and analysis, scientists found that primitive humans were omnivorous, similar to modern humans, with both vegetarian and carnivorous foods in their recipes.

After determining the proportion of carbon isotopes in the enamel of primitive humans, scientists found the teeth of carnivores of the same period in primitive sites such as Witwatersrand, and after analysis, found that the teeth of spotted coyotes, saber-toothed cats, and jaguars have similar enamel composition, and they all used to prey on primitive humans.

For a long time, scientists believe that the spotted coyote class of carnivores preys on humans still very normal, until now, their descendant's hyenas also often attack humans, but the saber-toothed cats in the smaller individuals can also prey on humans, which is very surprising.

Scientists in the past that some saber-toothed cats are not as large as saber-toothed tigers, and today's lynx is about the same size, in addition to its outward protruding saber-like canines are not very suitable for hunting primitive humans, while the pseudo-saber-toothed cats in the family of creatures have a danger to humans.

But now it seems that the main diet of the pseudo-saber-toothed cat is mostly herbivores, they did not hunt primitive humans, their diet and modern lions living in Africa are similar, mainly hunting herbivores.

The smaller creatures in the saber-toothed cat family have large canine teeth in their mouths, but this does not affect their prey on primitive humans.

The scientists' study is very meaningful so that people further understand prehistoric human and carnivore feeding, some scientists believe that prehistoric humans with high intelligence can prey on all mammals, but through Julia's research, prehistoric humans are the prey of many carnivores.