Animal vs. human hearing

Featured on Episode 2
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Human hearing isn't close to as good as many animals' auditory abilities.

Veterinarian Dr. Elaine Degrandpre explains what humans and our pets can hear.

"If you compare (animals) hearing to humans, it's very sensitive. Dogs and cats have a different range in frequency than humans," says Degrandpre, the Senior Medical Officer for Northern Alberta Institute of Technology (NAIT)’s Animal Health Program

HOW IS HEARING MEASURED?

It's measured in Hertz.

Hertz are the unit of frequency - one cycle of sound wave per second. The hertz symbol is Hz.

Degrandpre outlines the range of frequencies heard by humans is 20 to 20,000 Hertz, while dogs hear from around 67 Hz to 45,000 Hz and cats can hear 55 Hz up to 79,000 Hz. 

Here's a breakdown of hearing abilities of animals:

 Source: http://bit.ly/hearing-frequencies

Source: http://bit.ly/hearing-frequencies

Not only that...

  © itsinfectious.co.uk/ears-in-cats.html

 © itsinfectious.co.uk/ears-in-cats.html

Cats have added hearing gear.

It's called the pinna.

It's the external ear which can be rotate up to 180 degrees. It's like having a satellite dish for ears.

It allows the felines to zero in on a tiny sound, undetectable by us humans. 

 

TEST YOUR HEARING NOW!

Play this video to find out what you can and can't hear.