When we mix pets we should always have a different outcome not just the same pet over and over again and if we get the same pet we just wasted our money
-facepalm- Promo and school pets make hybrids. The reason all pets don't make hybrids are cause of how long it would take to code a new hybrid for every pet type. Also, getting the same pet over and over is what some people do to raise the pedigree level, my friend for example kept mixing Sea Dragons till he finally got perfect (80) pedigree.