She adds that the hum contains a rich variation of notes and varies in duration. This means it is not infrasound and humans can hear it without the aid of any equipment. Stoger, the hum is a very low frequency sound at about 92 hertz. “I was fascinated, because these signals have a very interesting sound and have a complex acoustic structure,” she says.Īccording to Ms. She found no evidence that giraffes were engaging in infrasonic communication however she did discover some strange humming coming from the enclosures as all three zoos during the night time. No infrasonic communicationĪngela Stoger of the University of Vienna in Austria reviewed over 1000 hours sound recordings at the different zoos in Europe. Elephants use these frequencies for long range communication as do some other large animals. Others have speculated that giraffes rely on low frequency sounds that are known as infrasonic sounds that humans are unable to perceive.
Previously scientists thought that the giraffe could not make any substantial sound because their long necks mean they could not generate sufficient airflows to produce vocalisations. Changed some misconceptionsĪccording to biologists who study this animal, giraffes actually hum. Have you ever wondered what a giraffe sounds like? These magnificent long necked animals make a range of basic sounds such as snorts through their nose, but most people would be hard pressed to identify a giraffe from the sounds that it would make until now.
Isn’t that sweet? Giraffes are mammals of few words, but they care about each other a lot.We all know what a lion sounds like when it roars, or a dog sounds like when it barks or a parrot sounds like when it squawks. “I can’t see you, but I’m here with you.” Biologists think this humming sound is useful for giraffes to signal other members in the dark. It’s not like a snoring sound that other animals make this is an organized sound, with a pattern. Here’s the strange part - they only make them at night!īiologists detected this humming sound after recording over 900 hours of audio in three zoos in Europe. They can also produce long sustained vocalizations, almost like a humming sound. New studies confirm that giraffes don’t just make short bursts of sound like the coughing, hissing and whistling mentioned above. When young giraffes stray too far from their mothers, the mothers make hissing or whistling sounds to warn them about the lurking dangers. The little sounds they makeĭuring mating season, the males make coughing sounds to attract females. They do it by paying attention to other members’ body posture and eyes, and sometimes by touching each other. This form of communication (without sound) is called non-verbal communication. In the wild, a giraffe can direct other members’ attention to a potential danger they stop whatever it is they’re doing, and, in unison, focus on their environment! Thus, it’s important that giraffes are able to communicate. Giraffes are very social animals that live in herds of 10 to 12 members.
Just like humans do! But even though giraffes make very little sound, they can still talk to each other in a unique way. They can produce specific sounds that mean different things. We like to think that lions, elephants, dolphins, cats and dogs are animals that can talk to each other. Giraffes can communicate without making any sound! But what sound do you think a giraffe makes? If you can’t answer that, don’t worry - giraffes are often the quiet ones in the family. Our lions roar, our elephants trumpet, and even the gazelles ‘honk’. Most mammals at Bali Safari Park make sounds that you recognize.
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