Thanks for all your suggestions...but I live in Shanghai, China, which is basically Chinese New York. Shanghai doesn't have any animal protection agency, so there was nobody to call. At the time I found the hamster it was already pretty late at night, so my parents wouldn't let me go back outside. D: Today, as soon as I could, I went to the same spot and sure enough...it was gone. I'm pretty sure I know what happened, since Shanghai is more of a " business" type of city than a "small town where people care" type of city. I try to think optimistically...so hopefully someone came and took it into their care.