In 1930, Belleo College included early human footprints discovered by Dr. Belleo On a hill in Kentucky, printed on a Paleozoic sandstone coast. Studies have found that as early as 250 million years ago, there was a group of "people" operating here.
As we all know, man evolved from the ancient apes, this is the view of Darwin's "Theory of Evolution", this view is so convinced by everyone that many people, now see monkeys, have a feeling that the future you are today. But this view was shaken by the discovery of a set of human footprints from two hundred million years ago in the United States.
Two hundred million years ago, there were no apes in this world, and there were no animals that resembled monkeys. Previous scientific research has told us that humans appeared 2 to 3 million years ago, but this set of footprints found in the United States is much earlier than this time, and there are traces of shoes on this set of fossil footprints. So how did humans come about?
This surprised everyone. Who left these footprints? Are there still footprints of human activity 200 million years ago? The places where these footprint fossils were found were all in the United States.
So far, there is still not enough evidence of the significance of the existence of giant footprints, leaving only the infinite conjecture of posterity, but once a collector discovered that a human footprint was found on a trilobite fossil half a billion years ago, that is, a footprint wearing sandals, just stepping on the trilobite. These are left to the endless conjecture of future generations, and the mystery of the footprints of 200 million years ago has not been solved to this day.
We all know that in the early days of the Earth, the overall environment was very bad. In this case, it is impossible to evolve life. After the earth's overall environment stabilized, microorganisms gradually evolved in the water. At the same time, the birth of these microorganisms produced oxygen and amino acids. It was because of the large amount of oxygen that the later Earth evolved into large-scale animals and plants.
Only after the advent of primates did it slowly become a possibility of human emergence. Scientists speculate that about 5 million years ago, "apes" and "apes" parted ways: The ape began to walk upright. We found dinosaur fossils from ancient animal fossils about 70 million years ago, but we haven't found fossils such as "humans" or other fossils that match the characteristics of highly intelligent organisms. From which part of the fossil, is it tall? What about intelligent creatures? The simplest is to observe the brain abilities of the creature.
As far as we are concerned, there are other "humans" on Earth. We don't have definitive evidence, but this is a very controversial one. Fortunately, the Earth has been born for 4.6 billion years, and 4.6 billion years is enough for a lot of magical things to happen, 4.6 billion years, giving us a long axis that can be imagined infinitely.
Some biologists say that in 4.6 billion years, there may have been more than five higher-level civilizations on Earth, but for some reason, it could be its own cause, or it could be a natural disaster like the extinction of the dinosaurs. The reason is that these previously emerging civilizations are extinct.