WEBVTT FILE

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you probably already know all about

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giraffes

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they're tall

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they have spots

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they live in africa

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but have you ever wondered what sound

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they make

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[Music]

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if you just realized you don't know what

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sound a giraffe makes you're not alone

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giraffes are notoriously quiet animals

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and for a long time it was theorized

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that their necks were simply too long

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for them to propel air all the way from

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their lungs across their vocal cords and

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out of their mouths

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some scientists believed that giraffes

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might produce something called

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infrasound or sounds at a frequency too

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low for human ears to hear

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in 2015 however a research team

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published a study claiming that giraffes

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actually make the most noise at night

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time a sound that they call

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humming

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let's take a listen

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[Music]

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um

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[Music]

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these researchers spent eight years

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collecting nearly a thousand hours of

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audio

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and during that time they only heard the

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giraffes humming 65 times so it's clear

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that even though giraffes can make

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sounds it is fairly rare for them to

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these eerie hums are not the only sounds

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giraffes can make

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they also snort

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grunt

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and make short coughing noises called

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bursts

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[Music]

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still the most notable and interesting

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sound that giraffes make is when they

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hum to each other in the dark

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[Music]

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so

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now you know what sound a giraffe makes

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[Music]

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[Music]

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you