Question

Write names of some vestigial organs in the human body and write the names of those animals in whom the same organs are functioning.

Answer 1

Some vestigial organs in humans that are functional in other animals are as follows:

1. Appendix: It is fully functional in ruminants for the digestion of cellulose.
2. Muscle of the ear pinna: It is useful in monkeys and other animals like rabbits, cows, horses, etc. for movement of the ear pinna.
3. Other vestigial organs include the tail-bone (coccyx), body hairs, nictitating membrane (third eyelid), wisdom tooth, etc.