Question

Name four animals without external ears.

Answer 1

Pinna

1. The pinna, or external ear, is a cartilage structure that is found on both sides of the head and is covered with skin.
2. It is available in many sizes and shapes.
3. Elephants, for example, have a large pinna, but monkeys have a small pinna.
4. The pinna might be fixed or adjustable.
5. The pinna's job is to collect sound and concentrate it on the eardrum by serving as a funnel.
6. Birds, reptiles, insects, and amphibians, for example, do not have an external ear.
7. Although these animals have funnel-shaped ears that aid in sound processing, but they lack external ears.