Water bear worm is a small aquatic animal, also known as a tardigrade animal. Water bear worm is the strongest living creature known on the earth, it can survive in an extreme pressure environment without protective measures. Strange capabilities have led researchers to investigate their genomes. Currently, the first genome sequencing results of pacing animals show that during the evolution of pacing animals, horizontal gene transfer (D. NA. ), A large number of genes were obtained from other species. If the following items are true, the above questions can be questioned most:. ['Genetic testing found a gene in water bear insects whose protein can resist DNA damage in human cultured cells.', 'Water bear worms can survive for a long time in a space vacuum environment, and can successfully recover after more than 30 years of freezing.', 'Water bear worms inherit all genes from their ancestors. No genetic material from plants or microorganisms was found in the body.', 'There is a very strange "mashup" method of genetic material in water bear insects. It is this "mashup" that makes water bear insects grow and develop in more complex ways.']