is it best to introduce my new kitten to both my other cats at the same time or one at a time? There doesn’t seem to be a clear answer on this.
The kitten is almost always safe if it is of at least standard age for adoption. It wouldn't surprise me if the 9 month old plays roughly enough with the kitten to be off putting if you haven't seen it before, but if the kitten is of standard age and size it should be fine. There seems to be some biological hard wiring preventing true aggression towards kittens. Sometimes an older cat will hold down a kitten and make it squeal a little though, to teach the little one some manners or in zealous play. As long as the kitten doesn't act afraid once the play is done it isn't a problem.Yes, I think I will just forge forward. If it looks like one is not doing well with it we will stop. The kitten will have a safe room to always go back to and he won't be left unsupervised with them for some time til I am sure he is safe. Thank you.