During the course of evolution some organs remain in the organisms. We have studied about appendix in digestive system.In human beings it has no role to play in the process of digestin. ... For example:-pinna,hair or skin,mammary gland in human,etc human being is said to be a moving museum of vestigial organs.
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yes that's true
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In the context of human evolution, human vestigiality involves those traits (such as organs or behaviors) occurring in humans that have lost all or most of their original function through evolution. Although structures called vestigial often appear functionless, a vestigial structure may retain lesser functions or develop minor new ones. In some cases, structures once identified as vestigial simply had an unrecognized function.
The examples of human vestigiality are numerous, including the anatomical (such as the human tailbone, wisdom teeth, and inside corner of the eye), the behavioral (goose bumps and palmar grasp reflex), and molecular (pseudogenes). Many human characteristics are also vestigial in other primates and related animals.
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