what noise does a giraffe make

Giraffes are known to be quiet animals, and for a long time, it was believed that their necks were too long for them to produce sounds. However, all giraffes have vocal cords and make sounds. In 2015, researchers analyzed recordings of giraffes from zoos in Berlin, Copenhagen, and Vienna and found that they make low-frequency humming noises at night. The humming of a giraffe is a low-frequency vocalization thats quiet, yet still within the range of human hearing. It is thought that these otherworldly sounds are a form of ‘contact call’ between individuals who have been separated from their herd, helping them to find each other in the dark.