So that everybody is on the same page the the question has added up to the best LAND, SEA, AIR, CARNIVORE, and MAMMAL. but feel free to stick to the original three.
this is just me,but Land:Monkey Water: Stingrays Air:Peacocks(I know they can't fly now, but they will revolutionize and take over mankind MWHAHAHAHAH!!! or, something, like that.