https://thewesterner.blogspot.com/2019/04/eric-schwennesen-horns.html?fbclid=IwAR0k5_JoQ4qEysmUZpn2AxIKYFph6T32-3Bg517xq56lK2ML1NsWHHA8JH8
:lol2:I freely admit to a science bias; and in this case, a paleontology bias: our modern beef cattle are direct, linear descendants of the aurochs of the Pleistocene epoch. They were very big, and probably very mean, and expanded onto a planet covered with ice which in places was miles thick; and some other critters expanded right along with them who were even bigger and meaner, and wanted to eat them. This is when growing some horns started to seem like a good idea; and there were probably some memorable battles; mammals could be a lot bigger back then. Try fighting off a sabertooth tiger with your ears, and you'd grow horns too!