Normally yes, but if they start fighting they will have to be separated.
the answer to that question is unknown.
Male hamsters tend to be less aggressive and protective than female hamsters.
Of course. Chinese Dwarf Hamsters and Roborovski Dwarf Hamsters can be put in groups of the same gender/breed. Ex: Male Chinese Dwarf + Male Chinese Dwarf Female Roborovski Dwarf + Female Chinese Dwarf
Only if you don't mind them having little hamsters.
yes, remove it from the cage and do not feed it to your other hamster
Male Chinese dwarf hamsters can be mixed with others but if they begin to get aggressive with each other, separate them asap! female Chinese dwarf hamsters do not often like each other. it is best not to mix them as they will probebley end up killing each other. DO NOT MIX DIFFERNT BREEDS OF HAMSTERS eg. a syrain hamster with a Russian dwarf hamster. if you have just put the hamsters in one cage, keep an eye on them.
the male hamster will choose one female hamster and the left one will die
No,no,and definitely not. That is a very bad idea. A male hamster should NEVER be placed in a female's cage, because female hamsters are very defensive about their territory,and will attack your male if he is placed in her cage. If you want the perfect set-up for more hamsters, you should put the female in the male's cage. Since males aren't as defensive about their territory as females, the female will get used to your male hamster's scent. Then they might eventually mate,then you should take her out of his cage. This happened when I first had 3 dwarf hamsters. We put our smallest one, Snowy, into our ferocious female hamster's cage , Paws (it was Chompers at the time, but we changed the name), and she tackled Snowy all over the place. He would have been killed if we hadn't have taken him out. A few years later, I learned in a book about hamsters and their mating, and discovered our problem with putting Snowy in Paws' cage.
It depends on the species or breed of hamster. Syrian hamsters are strictly solitary. They will fight if they live in a cage together. Dwarf hamsters usually are best kept in pairs, so rarely they will fight, but that doesn't mean it doesn't happen.
It depends on the species. The female may be aggressive towards the male and the male will stay away or they'll fight, but with Russian dwarf hamsters the father will help.
they will reproduce (make babies all the time) and if the parents arent satisfied they will eat the children
yes,but make sure to ask one of the people working there if they if the hamsters had a fight or don't get along! hope I helped ^_^!!