so today we tried to bring our 2 month old together with the 2 year old. the cage was cleaned up and down. introductions occurred on a rug for a week. they lived above/below each other for a week. the only thing left in the cage was the babies box since the hole was only big enough for her. there were some normal dominant behaviors such as rolling her over and sniffing her. then this occurred. the larger one was trying to get into the whole with her tail swishing and she was pulling out paper. it was very frantic