@EmilyGorcenski Given that 90% of their mass is below the surface, on average, perhaps you've just not been recognising them as such? 
Given how much I learned about icebergs in elementary school, I figured they would've been a much bigger problem in my life than they are.
-
-
Thanks. Twitter will use this to make your timeline better. UndoUndo
-
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.