Same Tree, Different Time
WALL-E is supposed to be about the hijinks that a cleaning rob gets into when it comes across a plant growing in the middle of a wasteland. Let’s ignore the fact that WALL-E steals spare parts from its fallen brethren for a minute and focus on something stranger.
Astute viewers pointed out how the plant in WALL-E looks just like the tree in A Bug’s Life. One theory is that after humans returned to the Earth from Starship Axiom, they couldn’t survive but plants and insects could. That would explain why there aren’t any humans in A Bug’s Life. Why does Pixar have to do humans so dirty?