I've got legs! Have you?

Shannon just told me that in its development right now, our baby is gaining the sense of its arms and legs. The term for this sense is proprioception, which I learned earlier this year. I think I read about a woman in Oliver Sacks' book The Man Who Mistook His Wife for a Hat who suddenly lost her proprioception and was only able to move her body when she was looking at it (her story is described on the Wikipedia page).

So thank goodness for proprioception, eh?