Roborovskis (Phodopus roborovski) are the smallest and fastest of all hamsters and are commonly kept as pets. Distinguishing characteristics of the Roborovskis are the white spots where their eyebrows would be, and the lack of a dorsal stripe commonly seen in dwarf hamsters. They live three and a half years of age. This is the longest of any domestic hamster.
They are very curious, however easily startled and generally quite shy. They are social and when socialized from an early age, sleep together in one place. They are not usually recommended for families with children, due to their flighty and sensitive temperament. Also, they are not as affectionate as other, more robust breed of hamster. Roborovski hamsters do not like to be held or cuddled. They do not form trusting relationships with humans easily. They grow to be roughly the size of an adult’s thumb. It can easily squeeze through the bars of a standard hamster cage.
If kept together in mixed sex pairs or groups, Roborovski Hamsters usually start to breed in the spring following the year in which the female was born. Females often become sterile at around 24 months of age but males usually remain fertile for most of their life.