I saw it the weekend after it came out. I loved it as well. And you may have recognized the narrator's voice...
And before the movie starts, it explains where the idea came from...something about Disney movie character ideas coming from watching and recording animals in the wild and Disney actually having either a show or other movies (kind of like Earth) a while back. You'd have to see it to know exactly what it says because it's been two weeks so I can't fully remember.