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.".

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教进化论的老师已经滔滔不绝地讲了快两个小时，他的话题又来了：“让我向进化论者提个问题——如果我们曾经像狒狒那样长着尾巴，那么现在尾巴到哪

里去了？”

“我来试试看，”一位老太太说。
“该是我们在这里坐这么久把它们磨掉了吧。”