Well i woke up in hte middle of the night to take my dog outside. when i came back in i went and laided down. i herd a weird noise in the rat cage and i shinned a light on them and they where like fighting and or wrestiling. so when i shinned the light they stopped. thewn 5 minutes later i herd the noise again and shinned a light on them again and be hold they where wrestling but, did not stop when i shinned the light on them. they are both females. i will have a male in about 17 day so i can the factory going. do you think they where fighting or just playing around. this was the first time this happend.