Quoted from RCA1:Spoiler Alert!!!!
It's revealed in the new movie that people discovered that Ewoks are delicious and they were subsequently hunted to extinction.
Before seeing the new movie (loved it), I watched Jedi with my son to prep him. When the one Ewok dies, the other leans over and hugs him, right? The next morning he explained to his Mom the artworks were cannibals - he thought he was eating him!
I LOVE MY SON.