Yes, actually it gives the rat stimulation and enjoyment.
you put a female and a male together but watch them incase they fight!!!
With style and a bottle of scotch. Or if you have kids, go play with the rug rats and their friends, be sick in no time!
You can watch "Lab Rats" on Disney XD or on NetFlix. Many other streaming sites may also allow this to be viewed (such as Hulu, etc.).
Rats very much enjoy the company of other rats. Putting males and females together however will quickly result in over population. To introduce two rats take them to a neutral area away from their cages. Say a table or a bed or the floor. Let them sniff and touch for awhile and then after a bit put them away into the same cage. Rats do tend to play fight and wrestle alot..there can be squealing, as long as they are not injuring each other it is all normal.
Because rats are smart and play with you
if born together then separated they will be territorial if reunited
Yes. They like to live together.
that the rats were their friends
nothing
No and they should not be kept together either.
They dont. Any interraction is purely coincidental. Rats hate humans. They only like rats. Get some real friends man....
The plague was spread by fleas that lived on the rats.