What if your hamsters are interbred?

Most species of hamsters will not interbreed and are not able to produce young. The only exception amongst the species kept as pets is the the Dwarf Winter White Russian and Dwarf Campbells Russian Hamsters which can be interbred and produce young. Although the two species have many similarities they do not occupy the same ranges in the wild and so interbreeding of the two species does not occur in the wild. Therefore interbreeding the two in captivity is unnatural. Interbreeding can also present problems and can threaten the existence of both species in captivity.