rat health

sorry for the spelling of the word ceser. But I dont know how to spell it and right now dont have time to look it up. But any way can a rat have or be prone to cecers when young or old. I know any animals can have cercers and heart attacks. The reason is this and I will try to spell my best so...

I think my girls nails need a trim, they are quite sharp and don't seem to be wearing down, I was wondering about the best way to help them out without the trauma of having to hold them whilst clipping, would it be better to maybe put a patch of sandpaper on the floor of their house? is there a...

My newest girl has a runny nose and ocassionally sneezes. The thing is it's clear liquid in her nose and she has no breathing problems and seems otherwise healthy. Should I be concerned?