Hi there,I have a question about stacking horse eggs and I'm wondering if someone knows the answer to it. I've seen, by chance, two horses have the same stats and the eggs stack. I have some donkeys whose eggs have the same stats and stack. I also have donkeys with the same stats that don't stack. I guess my question is why do some identical horses and donkeys stack and others don't. I thought maybe they were like heads and if I threw them into my vault, they would fix themselves, but that didn't work.