See 'who's stronger' by cuddling their neck

Giraffe males test each other's strength by banging, rubbing, and twisting their necks together. These deer battles can continue up to 20 minutes, despite the fact that they look cute when they "cuff with the neck." The male deer uses this behavior as a means of luring other female deer to him. From November 2016 to May 2017, Ms. Granweiler and her coworkers investigated giraffe social behavior at the modest Mogalakwena River Reserve in South Africa. They started keeping track of the specifics of these battles, practically a who-fought-who and how in the world of the giraffe.

They were startled to learn that giraffes, like humans, may fight with their right or left hand. Although, unlike humans, it appeared that they were equally split between lefties and righties, even the youngest animals demonstrated a significant preference. The researchers also observed that the younger boys engaged in less bullying and sparred more frequently with one another, almost always picking opponents who were of a comparable size to themselves. There was also a bar brawl effect going on, when one sparring match seemed to spread to the crowd and cause further fights to break out around them.