That was indeed an amazing documentary on our planet with pretty horrendous future implications. I wonder how the human acceleration of climate change plays into all of this. As the film states humans only get to see a very small slice of what's happening to our planet.
Humans won't have to be concerned with what will happen that far into the future. LONG before then, the Arthropoda, god's chosen animal phylum, the one that has conquered the land, sea and air, will rule the planet. [Of course, I'm just being facetious, there is no god. There are lots of arthropods.]