Perhaps early climbing skills correlate with high spatial ability? At least, that would make sense to me. Though, certainly some level of physical development would be necessary too.
uummmmm.......... DS7 had no conceivable spatial ability when he was about 17 months......... I remember taking him to the playground, they had a two level jungle gym. He was still really unsure on his feet, he would get to the second level.... there were decks for kids to hang out... he would walk up to the edge and walk right off like there was ground under him. We kept a gate on the staircase forever. When he was little he was nortious for walking into walls. We would ask him why, because he would be looking straight at it, he would say, I didn't see it. Recently he has told me he sometimes doesn't know how far away something is, "My eyes do this weird thing and I can't tell how close something is". I have often thought he has a visual spatial issue, now I wonder even more.
