I still remember my first high school basketball team when I was in Jewish Day School. In eighth grade, our starting center could not have been more than 5'6", and a starting guard was like Mini-Me with a kippa (with velcro straps - remember that invention?). As a tribe, we just were not very tall in those days. Nowadays, it's a different story - whatever steroids they're putting into milk these days is working its way up the food chain; kids are huge!
I was reminded about all of this from a recent brilliant blog post by Rav Natan Slifkin of Rationalist Judaism; he writes about the Rabbinic debate over Moshe Rabbeinu's height - is his being "ten cubits high" literal or allegorical? While I don't pretend to be a talmid chacham in the slightest, reading his article jogged my memory of a hysterical YouTube clip I came across years ago on precisely this subject: