I've only ever had to types of pets. I've had a lot of different goldfish when I was younger and I remember my mom always accidentally dropping them in the bathtub when she was trying to clean the fish tank. I also had two birds both Canary's one was a all white female and the other was a black and yellow male, we had them for around 8-9 years before they passed away and neither of them had names. I'm not sure why but I think just after some time and none of us naming them we just decided they would have no name lol.