No they do not, unless your room is colder in winter they tend to hibernate, which they shouldn't do so my advice is keep you room warm in winter or autumn but if your hamster is already hibernating then then don't try to wake him/her up because they will not feel it so instead turn your room temperature up and he/she will gradually wake up!
He is tail brown because hamsters come in many different colours. It is okay so do not worry.
They act normally.
There are dwarf hamsters their are Chinese dwarf hamster ( this hamster isn't classified as a dwarf they are just small hamsters) The winter white hamster Campbell dwarf hamster Roborovski dwarf hamster And they are different names and they all have different colors but syrian hamsters have more colors than dwarf hamsters
All hamsters are nocturnal.
Hamsters can swim. They will drown if they do though.
Syrian Hamsters - Winter White Hamsters - Chinese Hamsters - Campbells Dwarf Hamsters - Roborovski Hamsters So, 5.
There are Syrian Hamsters (the most common type), Dwarf Russian Campbells Hamsters, Dwarf Russian Winter White Hamsters, Dwarf Roborovski Hamsters, and Dwarf Chinese Hamsters.
hamsters are rodents
Yes you can. If you are interested they are called Winter White Russian Dwarf hamsters.
Summer. Wild hamsters hibernate during the winter and this has affected some domestic hamsters as well. They tend to be more playful during the summer.
it depends they can turn white in the winter or they can just stay that color
Yes. I'm pretty sure all hamsters do that, but I have a winter white that never empties her cheek pouches! :)