Can hamsters eat other hamsters

Yes, most likely when a mother has babies.Only some others like older ones are just aggressive. So make sure if you want 2 in one cage make sure they are social and are a non-aggressive species.

When you have baby hamsters with a mother it is best for you to not touch them. Your smell will stick to the baby hamsters. The mother will become frightened and will attack the baby hamsters if necessary. Some of the weaklings will get eaten too.