Necking, that is what these giraffe are doing and it's fighting! Male giraffes are the ones fighting, to see who is the strongest. They use their ossicones, the 'horns' on top of their head for fighting Due to fighting males don't have hair on top of the ossicones, they deliver hard blows with them and that makes them go bald on top. They hit each other with their ossicones over and over. They try to hit each others on the legs, the body and the neck. They really are strengled into each other at