apparently this footage is from Cabin in the Woods, I can’t believe I have been ignoring this film since it was released. anyway I have a slightly apocryphal bit of information to add.
there’s some evidence that the reason horned land animals all seem to have two horns instead of one (except for the rhino) is that one horn is too dangerous. horns on cows, goats, antelope, and antlers on members of the deer family form a fork or prong that distributes force somewhat and is a better shape for butting and grappling, which is mostly what horns are for, not stabbing and killing.
there have been a few experiments with livestock to create unicorns by surgically merging the horn buds of baby cattle and goats into one. the goat unicorns became famous circus attractions for a bit, that’s a whole story and their creator Zell Oberon is a really interesting eccentric.
but there were also cattle experiments, notably by a guy in the 1930s called W. Franklin Dove, who reported the “unibull” he made was able to do a lot more damage with his single horn in plowing over fences and gates and rival bulls than the typical bull is able to do. Despite this, Dove also reported the bull was exceptionally gentle and friendly and became the leader of his herd.
