Dolphin
Dolphins, like bats, utilize echolocation to locate prey and objects. These amazing aquatic creatures, on the other hand, employ echolocation underwater rather than in the air. They can hear noises between 20 and 150 kHz, which is seven times better than humans. Clicking and high-pitched whistles and squeaks are the most common noises made by dolphins. Their clicks create sound waves that ricochet off objects and prey, allowing them to identify their precise size and location (echolocation).
Dolphins listen to and hear noises through tiny ear holes on both sides of their skulls. They would normally use these little apertures for hearing when they are not underwater. They utilize their lower jawbone, which carries sounds to their middle ear, to hear noises underwater. Dolphins utilize noises to communicate with one another and to identify things and creatures underwater. There's also evidence that dolphins "speak" to one another, giving names to various noises.
Sensing Sound Frequencies: Between 20Hz and 150KHz