Opponents of evolution, including proponents of intelligent design or creationism, say that there is no such thing as vestigial organs, because a creator would not design something imperfectly or without a purpose.
At a minimum, those who doubt evolution reject the notion that an atrophied organ proves there was a common ancestor. One common argument that is used is that if we do not know the purpose a body part, it may be because of a lack of anatomical knowledge.
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