first off, I really liked the animation... but seeing as you didn't bother to add subtitles of any kind... I'm left to see a video that makes no sense... hence the 4...
so let me get this straight: alien cats that are able to make objects like rocketships come to earth to get a sapling, and go back to there planet/moon and terraform there whole world with just the sapling.
well, I guess it's as good a guess as any as to how life started.
on a side note: I can only imagine how this animation looks drunk/hi on about anything. it seemed a little trippy even just being sober, lol.