The earth was formed about 4.5 billion years ago. About 3.8 billion years ago, when the land on the earth was still deserted, life began to be nurtured in the roaring ocean - the most primitive cells, with structures very similar to modern bacteria. After about 100 million years

The earth was formed about 4.5 billion years ago. About 3.8 billion years ago, when the land on the earth was still deserted, life began to be nurtured in the roaring ocean - the most primitive cells, with structures very similar to modern bacteria. After about 100 million years of evolution, primitive cells in the ocean gradually evolved into primitive single-celled algae, which is probably the most primitive life. Due to the reproduction of the original algae and the photosynthesis is carried out, oxygen and carbon dioxide are produced, which prepares conditions for the evolution of life. This primitive single-celled algae has undergone billions of years of evolution, producing primitive jellyfish, sponge, trilobite , nautilus , clams, coral , etc. Fish in the ocean appeared about 400 million years ago.

I have also been educated. First of all, I personally don’t think of the theory of evolution, but I still believe in evolution very much. I only say what I saw and don't make any guesses. It's tens of millions of years, and I can't imagine seeing it. I at least do not completely doubt the characters depicted in Zhongshan and Sea Classics of ancient Chinese people, because they were written by people and not written by fish. I can even say that humans are not the original biological group of the earth. Genetic species are a little worse, and completely different species cannot tell the correlation.