This is a very handy adaptation for wild hamsters who must roam far and wide in a sparse desert environment to find food. There are two general types of pet hamsters. This animal can be up to five inches long and comes in many colorations and coat types. They can have relatively short hair, long hair or even wavy hair. In addition to the pronouced size difference, some personality differences have been noted between the two primary types of hamsters.
Dwarfs seem to be a bit more laid back and milder mannered.
They also get along somewhat better with cagemates than do the goldens, typically. The golden variety is best kept as a solitary pet, though it is possible to keep two or more together especially if they are introduced at a young age. Same sex pairs can also do OK on occasion. Dwarf hamsters can be kept as solitary pets, or can be carefully paired up with another of the same type. Putting a dwarf hamster in the same cage with a golden type is never advised.