Cows moo, lions roar, and pigs oink. But for many years it's been assumed that, except for the occasional snort, giraffes spent most of their lives in a tight-lipped silence. New research from a group ...

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 ...

(NEWSER) – What does the giraffe say? For decades it’s been a simple answer: nothing, except for a snort or grunt every now and then. Though giraffes have a voice box, one line of thought was that due ...