So What Is This “Humming” Sound Giraffes Make?

 

A study published by BMC Research Notes found that giraffes primarily use infra-sound to communicate.

The study did not address the fact that it is young giraffes who produce the most noises humans can hear, as proven by empirical research. They could not conclusively determine that mature adult giraffe sounds are less numerous in terms of sounds produced.

Along with that research came this sound clip from BMC.

So far, this gentle giraffe humming has only been heard and recorded at night.

Keepers at the Georgia Zoo and animal behaviorists say they had never heard this humming until the researchers played the audio clips, so it’s possible that it’s just giraffe snoring.