We are familiar with many animal sounds – a lion’s roar, a dog’s bark, a parrot’s squawk – but what sound comes to mind when you think of a giraffe? The long-necked beasts make basic sounds like ...

It’s long been assumed that unlike other animals, giraffes are largely silent beasts. They don’t oink, moo or roar. But new research suggests perhaps giraffes do have a distinct sound: They hum. It ...

Giraffes produce "humming" vocalizations at an average frequency of 92 Hertz. Share Until now, giraffe caretakers had reason to believe that their long-necked vegetarian friends were strictly silent ...