Mammals:
* Bats: Use echolocation, which relies on highly sensitive ears to navigate and hunt.
* Dogs: Have a much wider range of hearing than humans, picking up high-pitched sounds we can't.
* Cats: Can hear higher-pitched sounds than humans and can rotate their ears 180 degrees for optimal sound detection.
* Elephants: Have large, sensitive ears that can detect low-frequency sounds from miles away.
* Whales: Communicate using complex vocalizations, relying on sensitive ears to detect these sounds underwater.
* Horses: Have excellent hearing and can detect sounds that are too faint for humans.
* Rabbits: Have large, mobile ears that help them detect predators and other sounds.
* Mice: Have highly sensitive ears that pick up sounds at high frequencies.
Birds:
* Owls: Have asymmetrical ears that help them pinpoint the location of prey.
* Hawks: Have excellent hearing that helps them locate prey from a distance.
* Nightingales: Have sensitive ears that allow them to sing complex songs.
Other Animals:
* Snakes: While they don't have external ears, they can detect vibrations in the ground through their jawbones.
* Insects: Many insects have sensitive hairs on their bodies that vibrate in response to sound waves.
* Fish: Have a system of tiny bones called otoliths that detect vibrations in the water.
The sensitivity of an animal's ears depends on several factors, including the size and shape of the ear, the number of auditory cells, and the animal's environment and lifestyle.