Two cavemen catch a prehistoric reptile doing cave paintings. They look upset while the reptile looks happy.
Reptiles cannot draw because they lack the opposable thumbs to draw.
Why is the reptile drawing?
It will be worth even more when he's extinct.
scene: a cave description: Two cavemen catch a prehistoric reptile doing cave paintings. They look upset while the reptile looks happy. uncanny: Reptiles cannot draw because they lack the opposable thumbs to draw. entities: Hieroglyph, Caveman. caption: It will be worth even more when he's extinct.
This joke takes the common trope of an artist's work rising in value after they die to an extreme: instead of the lizard's art rising in value when the lizard dies, it rises in value after the entire lizard species is extinct. Extinction also fits in with the trope of cave-people/ancient times/dinosaurs.