I have been wanting to weigh Spring and finally got around to bringing her into work today and the big number is 13.4 lbs! And 13 pounds of rabbit is a lot more spread out than 13 lbs of cat or dog-she was quite an armful to carry around. When we got home we let her out of the carrier in the laundry room and let her hop around a bit before taking her back to her pen. She was timid at first but then became more inquisitive. We need to let her out more so she has room to really run-she had a big pen-like a quarter to a third of a bedroom but she's so long she still can't really stretch out when she runs. Here are some pictures of her expedition around the house. Icy was a little startled to see her out of the pen but they really didn't bother each other.