Hamster
There are six main types of hamsters: the Syrian hamster (the kind most people have as pets), winter whites, campbells, the Russian dwarf hamster (a hybrid of winter white and Campbell's dwarf hamsters), the Chinese hamster, and the Roborovski hamster. Unlike other species, the Chinese hamster has a long tail. All Syrian hamsters are the descendants of 12 baby hamsters found in Syria in 1930.