Its been wondering this since pandaria had been accounched, and I find it kind of comical when you look at it.
These are Furbolgs:
Somewhat derpy looking, primative bear people who live in small tribal packs and seem to be aggressive to any outsides.
And these are pandaren. A race of highly evolved bear people with are scholars, monks, teachers, they have an advanced langauage and culture, and probably one of the most socially advanced race on azeroth.
So, Furbolgs, kind of primative and living in logs.
Pandaren, highly advanced and builders of great cultural empires.
I realize the reason for this comes from the whole myth of the waters of the vale. But I have to wonder, much like how night elves evolved from trolls from the well of eternity, why then didn't the furbolg evolve into a more intelligent and advanced race, on par with the pandaren? They obviously must have been just bears at one stage thousends of years before, and the well evolved them into bear people, but still... they seem kind of... half advanced?