I had 2 female hampsters when I was in high school. Rosemary and Nose Marie. They liked to bite at first and I think they lived 2.5 or so years. One died and the other one followed shortly after. I think the one had a stroke or something. All I remember was it's nose was bloody. I dont think I would want them again though - too small and they don't live very long. I like my chinchilla, she is big enough to hold easily and can live 20 years or more but they can have issues with teeth and a very sensitive digsestive system. Kinda of like bettas, by the time you sense something is wrong it's usually too late to do anything about it and most vets don't know a damn thing about them.