There is one thing that I noticed with my two cats, Boots and Callie. They have different ear notching. Let me explain what I mean:

Both Boots and Callie are females. We decided to get both of them fixed. Callie was done about 14-15 years ago (she's about 15 1/2 right now). When they got done, they took a triangle piece (not too big or too small) out of the outsides of both of her ears. That way, if she ended up at the SPCA, she wouldn't have to go through it again since her ears were notched. About 2 years ago, we had Boots and her 2 sisters fixed. All three of them had their left ear squared off. My question is why are they different? Is it because of vet (one was done by a vet, the other three were done by Cornell's Vet students) or is because the notching was changed over the years? It kind of bugs me since I think that squaring off the ear takes away from a cat's face. Do other people have different ear notchings on their cats?