Most hamsters grow cannabilistic towards each other as they mature. The amount of people who came into work saying their hamsters had killed eachother.
You shouldnt normally be sold two hamsters together of the same sex for risk of them fighting and killing eachother. Even hamsters of the same sex should normally be seperated to reduce fighting. Obviously put together to breed but then normally seperate afterwards.
Female hamsters are the meanest aswell when theyre in heat
nasty things.
I'm interested in one to add to the collection, let me know if theyre already gone.