Some human body parts have become useless over the past few million years. Useless body parts include the appendix, the tail bone, and the muscle fibers that produce goose bumps. Take a look at nine body parts that remained in the human body despite having no function for millions of years. Several other body parts used to be important for humans' survival, but they have since become useless. Take a look at nine body parts that remained in the human body despite having no function for millions of years.

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