British scientists have recently discovered that the history of human clothing can be traced back to about 72,000 years ago. This is the first hypothesis about the origin of clothing in academic circles so far. Professor Mark Si Tong King of the Max Planck Institute for Human Evolution in Britain skillfully used the influence of clothes on the evolution of lice to infer the origin of clothes by using the method of genetic research. At present, the oldest clothing specimen in the world is the fragments of ancient Egyptian linen handed down before 5000 BC. Because clothes can't form fossils, scientists can't conclude that they are the most primitive human clothes. However, Professor Si Tong King and his research team were inspired by another ancient and common thing-lice, which revealed the "indissoluble bond" between people and lice on another level for the first time. Si Tong King and others wrote in Contemporary Biology that lice can be divided into two types-head and body. The former was born earlier and generally lives on people's scalp. But with the ancients getting used to wearing clothes to avoid the body, lice on the scalp began to move to the clothes and eventually evolved into the latter. By studying the genetic differences between them, we can determine the age at which the above-mentioned evolutionary process occurred, and this age is the time when humans began to wear clothes-about 72,000 years ago.