My rat Luna has started biting. I've had her for about a month and a half and this is the first time she has started biting. What could be wrong with her? It is really annoying she has broken the skin 2 times so far.
loco has been doing that too. she waits til i go to get her out of the cage, then "chomp", but she doesnt do it if i poke my fingers through the bars. we've put it down to her being territorial over the things in her cage, and nothing we've done so far has made her stop.