Last night I thought my syrian hamster was dead, I touched her and noticed she was cold but not rigid so I picked her up and she moved. I thought about torpor so I held her close to me until she woke up more, then put my lizards heat mat under her cage and put her back in. She is fine today, but I am confused about something: Her and my russian dwarf hamster were in the same place, on the top of my lizards vivarium, but my dwarf hamster was fine. How come the syrian went into torpor whereas the dwarf hamster was fine?