达尔文在他的进化论中首次提出了人类是由猿猴进化而来的假说。自此以后,这个结论一直有不少科学家在争论。其中一个很重要的疑问是:猿猴的体毛很密很长,而人类的体毛为什么十分稀疏?为此,不少科学家又提出了一些十分奇特的猜想,其中比较重要的三大假说是“水猿假说”、“散热假说”和“免寄生虫骚扰假说”。无论是什么样的假说, Darwin first proposed in his theory of evolution that humans evolved from apes. Since then, many scientists have been debating this conclusion. One of the most important questions is: is the monkey’s body hair very dense and long, and why human body hair is so sparse? To this end, many scientists have put forward some very strange conjectures, of which the more important three hypotheses are “water Ape hypothesis ”, “ cooling hypothesis ”and “ parasitic harassment hypothesis ”. No matter what kind of hypothesis,