Why?

Well, why not?

Comic transcript

(instead of doing the usual panel-wise description, I'll just describe what happens this time)
Parrot has been welding a giant pair of scissors. Right as they finish, they hear a loud growling and exclaim "Uh Oh ...". A giant rock is rolling down a cliff. The rock bounces and grinds against the scissors, while Parrot shouts "Nooooo!". Meanwhile, Prof. Owl has been observing the scene, commenting "Ha! Trivial.", as they catch the rock with a huge piece of paper that wraps around it.