If you introduce them as children using the split-cage method, yes. any other way willl result in murder and fighting.
Yes
You should never put mice or any other rodent of different species together. They will attack eachother, and most likely kill eachother if it gets to the extreme.
It depends what age. It is best to put them together as young as possible.
yes. gerbils enjoy sporting many different types of hairstyles.
Yes! If they continue to fight put them in a diffrent cage for a few hours, 5 or 6, then put them together again. They will make up because they were lonely. I have 9 gerbils it works. :)
No I have two female gerbils (Minnie and KE$HA) and KE$HA is clearly older and they get along fine.
yes. so they dont fight, you need to put a divider in the middle of the cage.
It depends on the characteristics. For example, they could be put into different species if they lived in different habitats.
Unfortunately not, both are very social creatures! If you have a gerbil in a cage with a rat they may fight or even kill each other. So please don't put them together it's not safe for the rat or the gerbil.
Put them in a quiet preferably warm room. Remove any other gerbils from the cage.
Absolutely not. Gerbils are highly territorial and you cannot even introduce a lone adult to a lone adult without a splitcage. It is highly likely that the gerbil would just kill the mouse. Cohabiting different types of rodents is never advised, and there are very, very few examples where it can be successful many of which are isolated incidents. Even where successful, the company of another species can never substitute for company of their own kind.
Yes. Male gerbils, no matter how old they are, can impregnate female gerbils. Most female gerbils can no longer conceive after 2 years of age. Either way, it's never wise to put a male and female together unless you intend to breed and provide for several litters. Gerbils are not easy to find homes for.