If you go to a petshop then you wont find any purebred WW im afraid
Because of the massive breeder mills and the fact that small animals are considered desposable and thus is produced in huge quanteties they do not take enough care to ensure a WW is not bred with a C... this is resulting in hybrids that flood the market because you can never outbreed hybridisation all offspring of the hybrid hamsters will become hybrids no matter how much pure WW or C you breed in the line again... And because almost all petshops get their "produce" (gross term i know) from the same types of places the hamsters will be the same no matter what petshop you buy from. This is what i have gathered from the web...
To ensure a pure WW or C contact a reputable breeder, one that infact CAN tell the difference and wont produce hybrids
You might find one in your area on this forum if you check out the breeder section ^_^
I could not find a breeder near me so I am going for a hybrid, they make great pets even tho they are a cross between the two species. You do have to keep them on a low to non sugary diet, they are prone to diabetes unfortunatly :/
Good luck in finding a WW and remember no one will condem you for buying a hybrid if you dont find a WW or C, many on here have them and they make good little friends