There is some sort of math behind why a 1:1 ratio is almost always selected for. It intuits like, if all of the other elephants are breeding 1:2, and you breed

There is some sort of math behind why a 1:1 ratio is almost always selected for. It intuits like, if all of the other elephants are breeding 1:2, and you breed 2:1, you will be significantly more likely to spread your genes.