I have a baby Mexican Red Knee. When I got it the legspan was about that of a quarter not much more. It was pretty bald with very little color. Amazed at how fat it was getting after owning it a month I snapped a few pictures. Perfect timing about 24 hours after the photo session "Kneesie" vanished deep into the little hide I made for it. 3 days later a small T emerged. Kneesie does not look like just a spider anymore. It is about the size of a silver dollar now.