What is an ossicone?
Ossicone means bone cone. It is a cone-shaped nodule that looks like a short horn, but it is not a horn. Horns are made of keratin and ossicones are made of bone.
Giraffes have ossicones on their head. All giraffes have two ossicones, but the Rothschild’s Giraffe has five ossicones.
Photographer: Martina Nicolls
Martina Nicolls: SIMILAR BUT DIFFERENT IN THE ANIMAL KINGDOM

Reticulated Giraffe (left) with two ossicones and Rothschild’s Giraffe (right) with five ossicones