To prepare a sleeping place for her coming babes.
Usually wire ones as they can climb on them.
Yes, hamsters are known to climb the inside of their cages. It's a natural behavior for them and can provide mental stimulation and exercise. Make sure the cage has plenty of safe climbing options for your hamster.
No animals like being in cages.
cages
Yepp
You shouldn't buy round or oval cages for hamsters because they will not be very happy in one. Hamsters like the corners of square and rectangular cages. Corners give them a secure place to sit.
None..
no
Wired cages, plus better ventilation.
If it's bleeding like crazy, take it to the vet. You should seperate the two hamsters in different cages. The bigger hamster might be stressed or something and is trying to kill it's baby.
Hamsters don't generally smell if their cages are cleaned regularly and properly.
Yes, they are great for dwarf hamsters.