There was something called the "Red Queen" hypothesis in western biology.
This hypothesis posited that in the evolution of the biological world, all creatures had to constantly compete with the other species around them. If a species stopped evolving, it would be eliminated mercilessly.
The entire evolutionary process could be described by the saying, "If you're moving forward, you're moving backward". Foreigners might not have heard this before, but in the story of Alice in Wonderland, the Red Queen said this to Alice, "Now, here, you see, it takes all the running you can do, to keep in the same place."
Therefore, scientists named this Red Queen hypothesis.
When it came to evolution, one must mention viruses too.
In the 1990s, biological sequencing technology was relatively mature. Scientists began to study the nucleotide sequences in human chromosomes to decipher the secrets of human genetic code.
