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
![Giraffe's horns may act like giant lightning rod that makes them vulnerable to fatal electrocution | Daily Mail Online Giraffe's horns may act like giant lightning rod that makes them vulnerable to fatal electrocution | Daily Mail Online](https://i.dailymail.co.uk/1s/2020/09/17/20/33312212-0-image-a-21_1600369810200.jpg)
Giraffe's horns may act like giant lightning rod that makes them vulnerable to fatal electrocution | Daily Mail Online
Riverbanks Zoo and Garden - Does a giraffe have horns? Those are not actually horns. They are ossicones - cartilage that has transformed into bone and are covered in skin and hair.
![Animal reproduction: Giraffes' necks may have evolved for sexual competition | Science & Tech | EL PAÍS English Animal reproduction: Giraffes' necks may have evolved for sexual competition | Science & Tech | EL PAÍS English](https://images.english.elpais.com/resizer/uu6liwHMUXQEXJvCY6Ok1Yz8L_w=/1960x1470/filters:focal(650x668:660x678)/cloudfront-eu-central-1.images.arcpublishing.com/prisa/3LGUS3HM65DUPP4ST3CMJKVDWY.jpg)