Have you ever listened to a lyrebird? They can make all sorts of sounds… children's toy guns, camera shutters, chainsaws, snatches of conversation…. Parrots are also well known for being able to make a large variety of sounds. read more
Bats make high-pitched sounds measured from as low as 10 kHz to above 160 kHz. Humans with very acute hearing can hear part of the lower range of bat sounds, but most of them are beyond us. Bats use these sounds to"echolocate" both prey and obstacles in their flight paths. read more
By contrast, bats can hear ultrasonic sounds with frequencies up to 110,000 hertz. Other animals, like elephants, hear sounds many times lower than those a human can perceive. And as people age, their hearing gets even worse, eliminating even more sounds from the range of audible noises. Here are just a few sounds most people are missing out on: 1. read more