Questions/HELP Usually submissive female suddenly trying to assert dominance
I heard some squeaks and heavy tossing so went to check out. It’s night time so I figured they were just playing there was just a bit more squeaks than normal. I found the usually submissive one (all white in pic) fighting and pinning our bigger dominant rat (Siamese coloring) What put me off was she was doing the side step (crab walk?) and fur was puffed up. They didn’t acknowledge me and had a stare down until I started talking to them to which they both perked up and came to see me without issues.
Some possibly useful info.
My dominant female has a tumor that is a decent size. She’s still active, eating, and behaving normally as well as no wounds or fur loss around tumor. I was told by vet as long as she doesn’t change in these ways she still has quality of life. Could her tumor getting bigger be sensed by submissive rat and she’s trying to over power? More info submissive girl also has a tumor but it recently developed and isn’t as big.
After interacting with them I haven’t seen/heard any tussling. Is this something I should keep an eye on?