We love our rats, and have been in the same situation several times over the years. We have been fairly successful (sometimes more than others)using the following methods. First of all, we've always had males (I don't know if it would be different with females, or not). We keep two seperate cages - right next to each other - so they can "talk" but not touch til there used to seeing each other (if possible, bring home more than one baby - it's harder for the "old guy" to gang up more than one). After a few days we let the "old timer" into the babies cage - while they're out, to really explore the new smells - we've been advised not to try to introduce new adult ratties - babies will know the "old guy" is dominant. The first few times we put them together (in a neutral area)we rub they're noses and privates with vanilla (or something equally as smelly and non-toxic) so that everone smells the same. We then put eveyone in a clean, fresh cage - increasing the time over several days - until everyone is one happy family. Not to sound preachy, but something else we've also learned the hard way over the last several years is that while aspen shavings are better than cedar, a product like care fresh (recycled paper) or something similar is best. The only way I could be happier owning these beautiful, smart, funny little guys would be if they lived longer. I know this is a long response, but hope it's helpful. I'm brand new to computers, and this is the first time I've ever written to anyone. Bye.
