Grug never thought of that, maybe that explain where the pebble bug come from. But then again Grug only put dung under rock after pebble bugs show up. Me think it something else. They show up maybe 10 moons ago, me only start use dung 5 moon ago, your think not add up. Any other think before me try go wrestle Stink Bird and bring back to cave? <|endoftext|> 