Question

what is vestigial structure?
Answered by GPT 3.5
Vestigial structures are anatomical features that have lost their original function in a species over the course of evolution. These structures, which were once useful in ancestral species, have become reduced in size or modified and are no longer essential for survival or reproduction in the present species. Examples of vestigial structures in humans include the appendix, wisdom teeth, and the coccyx (tailbone). Their presence is considered as evidence of common ancestry and evolutionary history.