Oregon Zoo - Ever wonder about those knobs on a giraffe's head? They're called ossicones, and only giraffes and okapis have them. Unlike horns and antlers, they're made of hardened cartilage and
![Those funny looking "horns" on a giraffe are called ossicones and are using during combat between males, called "necking". Fights can last up to a half hour and can result in death! Those funny looking "horns" on a giraffe are called ossicones and are using during combat between males, called "necking". Fights can last up to a half hour and can result in death!](https://i.imgur.com/fytdLN7.jpg)
Those funny looking "horns" on a giraffe are called ossicones and are using during combat between males, called "necking". Fights can last up to a half hour and can result in death!
![Animal Planet on Twitter: "Those 'horns' on top of a giraffe's head are called ossicones: https://t.co/u0T9Mu65Ac" / Twitter Animal Planet on Twitter: "Those 'horns' on top of a giraffe's head are called ossicones: https://t.co/u0T9Mu65Ac" / Twitter](https://pbs.twimg.com/media/DIGSYBrXkAMHHON.jpg:large)