Elephants, whales, hippos, rhinoceros, giraffe, okapi, and alligator are just a few examples of animals that create infrasound. Elephant's hearing range between 1 and 20,000 Hz. Humans cannot hear sounds in the infrasound range. Typically, an elephant's numerous different rumbles will span between 14 and 35 Hertz. The far reaching use of high pressure infrasound opens the elephant's spatial experience far beyond our limited capabilities.
Collects underwater sound vibrations with an air bladder.
Hair cells in the inner ear respond to the vibration and transmit sound information to the fish brain. Grasshopper can hear up to 50,000 Hz. Mice can hear frequencies between 1,000 and 100,000 Hz. By comparison, humans can hear frequencies between 20 and 20,000 Hz. Noctuid moth has a hearing range between 1,000 and 240,000 Hz.