 The jungle theory would also support why almost all the animals in the Kaiparowits Formation were new species, and why the deposits were so plentiful.Without the need for herbivores to migrate to find food, and theropods to migrate after herbivores, a whole ecosystem could evolve secluded from interbreeding.The theory also supported why the dinosaurs adorned such features like the 15 horns of "Kosmoceratops", they were for sexual selection.