Strange Animals
TOOL 09

Hearing Range

Every animal lives in its own band of sound. Elephants talk in rumbles too low for us to hear; bats and dolphins navigate with clicks far above our ceiling. Drag the frequency, play the tone if it falls inside human hearing, and see who else is listening.

FREQUENCY440 HzThe speech band, where our hearing is sharpest
Pigeon
Elephant
Human
Barn owl
Cat
Dog
Mouse
Bat (echolocating)
Bottlenose dolphin
Greater wax moth
0.11101001k10k100k
WHO HEARS IT · 7
PigeonElephantHumanBarn owlCatDogBottlenose dolphin
BELOW 20 HZ

Infrasound travels for kilometres

Low frequencies lose little energy over distance. Elephants use rumbles near the bottom of our hearing to keep in touch across several kilometres of savanna, and homing pigeons have been shown in the lab to detect sounds as low as 0.05 Hz, possibly using distant surf and wind as landmarks.

ABOVE 20 KHZ

Ultrasound draws sharp pictures

Short wavelengths bounce off small objects, which is why echolocators use them. Bats resolve insects the size of a gnat; bottlenose dolphins hear up to about 150 kHz and can tell objects apart by material. Dogs and cats hear well above us too, which is how a dog whistle works.

THE RECORD

A moth hears 300 kHz

The greater wax moth holds the record for the highest frequency hearing of any animal, about 300 kHz, fifteen times our upper limit. The leading idea is an arms race: hearing far beyond any bat's calls gives the moth early warning before it becomes a meal.

Ranges and sources

Approximate limits measured with behavioural audiograms at moderate loudness. Individuals vary, and hearing narrows with age: most adults lose the top few kHz by their forties.

ANIMALLOWESTHIGHESTWHAT IT HEARS WITH IT
Pigeon0.05 Hz11.5 kHzInfrasound from wind and surf, possibly for navigation
Elephant16 Hz12 kHzLong-distance rumbles between herds
Human20 Hz20 kHzSpeech sits mostly between 250 Hz and 4 kHz
Barn owl200 Hz12 kHzPinpoints rustling prey in total darkness
Cat48 Hz85 kHzRodent squeaks well above our range
Dog67 Hz45 kHzHears the whistles we cannot
Mouse1 kHz91 kHzUltrasonic calls between pups and mothers
Bat (echolocating)1.5 kHz110 kHzEchoes of its own calls off insects
Bottlenose dolphin75 Hz150 kHzClicks that resolve fish and seabed
Greater wax moth1 kHz300 kHzBat calls, long before the bat is close
  1. Heffner, H. E., & Heffner, R. S. (2007). Hearing ranges of laboratory animals. Journal of the American Association for Laboratory Animal Science, 46(1), 20-22.
  2. Heffner, R. S., & Heffner, H. E. (1982). Hearing in the elephant (Elephas maximus). Journal of Comparative and Physiological Psychology, 96(6), 926-944.
  3. Johnson, C. S. (1967). Sound detection thresholds in marine mammals. In Marine Bio-Acoustics, Vol. 2. Pergamon Press.
  4. Kreithen, M. L., & Quine, D. B. (1979). Infrasound detection by the homing pigeon. Journal of Comparative Physiology, 129, 1-4.
  5. Moir, H. M., Jackson, J. C., & Windmill, J. F. C. (2013). Extremely high frequency sensitivity in a simple ear. Biology Letters, 9(4), 20130241.