Literature
Theory of Race in Ponies
Here is my theory for how the race of a pony is determined. As evidenced by the Cake family, foals are not always the same type as their parents, and here I attempt to explain why. I motivate the theory with tools of quantum mechanics, but it may be easier to use the equivalent model of probability averages listed below it.
There are three types of pony: earth pony, pegasus, and unicorn. I'm not counting alicorns here; more about them later. They are all members of the same species, and thus interbreeding among the types is possible, and is now in fact quite common. However, it is clear that any product of such interbreeding is still a membe