So, in real life, different animals have different traits that we like or dislike. For example chicken could have a trait that would make it grow fatter, or lay more eggs, or a bad trait could be that a horse could have a birth defect giving it a crooked leg. The player would be able to manually breed animals for good traits in a separate breeding pen (if not in the breeding pen, they would breed automatically). There would also be some chance for a random genetic mutation like a horse could be born with shorter legs, making it sort of like a horse with dwarfism. So overall , I would like traits that you could specifically breed animals for that would give them some disadvantages and advantages