When you have a hearing loss, your hearing range changes. Among them, the most surprising one is their acute sense of hearing. The hearing range of the cat for sounds of 70 dB SPL extends from 48 Hz to 85 kHz, giving it one of the broadest hearing ranges among mammals. The in-air hearing of three polar bears was measured using evoked auditory potentials obtained while tone pips were played to three individually anaesthetized bears at the Kolmården Djurpark. Birdsong, certain speech sounds, and instruments like flutes and piccolos are difficult to hear for most with hearing loss. 'The maximum range of human hearing includes sound frequencies from about 15 to about 18,000 waves, or cycles, per second.' While there has been recent concern about the effects of sound on marine mammals, including polar bears, there are no data available measuring the hearing of any bear. 'The general range of hearing … The dynamic range for hearing in the geometrid Biston betularia is about 50 dB because each cell covers a smaller range (10–15 dB) than the A cells in a noctuid ear. Living in a constant din, bats’ hearing remains resilient. One piece of evidence for this is the fact that the hearing sensitivity of the common vampire at decreasing frequencies looks somewhat normal until it hits 5 kHz. Hearing range of the domestic cat. 'Experiments have shown that a healthy young person hears all sound frequencies from approximately 20 to 20,000 hertz.' The frequency range of hearing extends to at least 100 kHz in all species studied thus far (Figure 2b, right, B. betularia;Surlykke and Filskov 1997). The sounds in this range are below than humans can hear. Heffner RS, Heffner HE. Yes, this amazing bird can hear low-frequency infrasound (less than 20 Hz). This sensitive hearing let pigeon detect distant thunderstorm and volcanic eruptions. Vampire bat sensitivity for low frequencies seems to be a special adaptation. Where the pigeons can detect even sounds as low as 0.5. The goldfish doesn’t fare much better, with a range of between 100Hz and 2,000Hz, with frogs only being able to hear between 100Hz and 3,000Hz. For most, a hearing loss will begin by affecting the upper pitches of the human hearing range. Take a moment to sympathise with the turtle, that only has a vocal hearing range of between 20Hz and 1,000Hz. The behavioral audiograms of two cats were determined in order to establish the upper and lower hearing limits for the cat. Bats need sensitive hearing to function effectively, yet live immersed in an intense clamor of sound – a new study shows that the noisy background doesn’t reduce their hearing sensitivity, which is a rare immunity in nature. Below that point, the sensitivity suddenly jumps up, beyond other bats. Bat echolocation calls can go as high as 212 kHz, so the high-frequency hearing could help the greater wax moth hear a different predator species' calls and evade them, Windmill said.