I agree. I think if they are not grown to absolute perfection in captivity they won’t be as big as if they were in the wild. Bone structure going off at unnatural angles on captive torts would create a smaller framework than bone structure at perfect angles,arcs.Their shape in general is also just a bit different to me. Lower. Wider. Is it just me? Not to mention that the adult wild collected seem to be larger than the captive born and reared. (These are my own thoughts and observations) I'm not sure if these are scientific facts. But I've seen large, "wild" Redfoot that required a second glance. Because I wasn't sure what I was looking at.