C.M.
I think boys have just gotten a bad rap! I have one of each and they both did different things at different times. My daughter was an early walker, but she took a while to sit up and my son was the opposite. I think boys can do everything the girls can, but don't want to waste time doing so...who wants to have a conversation when you can be hightailing it across the field to chunk rocks in the stream anyway???
I taught pre-K last year and all the boys (minus 1) were way ahead of most of the girls!