英語笑話:我們的尾巴　Our Tails

The lecturer on evolution had been going on for nearly two hours. then he started again, and said he:"Let me ask the evolutionist a question --- if we had tails like a baboon, where are they?"

"I'll venture an answer, " said an old lady. "We have worn them off sitting here so long.".中文翻譯： 教進化論的老師已經滔滔不絕地講了快兩個小時，他的話題又來了：“讓我向進化論者提個問題——如果我們曾經像狒狒那樣長着尾巴，那麼現在尾巴到哪裏去了？”
“我來試試看，”一位老太太說。“該是我們在這裏坐這麼久把它們磨掉了吧。”