A vestigial structure is a feature or organ that no longer serves a useful purpose in an organism. These structures are remnants of ancestors' functional features that have lost their original function over evolutionary time. Vestigial structures can be found in many organisms and are often observed as reduced or rudimentary features. Examples of vestigial structures in humans include the appendix, tailbone (coccyx), and wisdom teeth. These structures exist because they had a functional role in the past but have become non-functional or have lost their original purpose as the organism evolved.
Bot GPT 3.5
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