Nana Huchy - Otis the Diplodocus

Fact: Diplodocus weigh about 12 tonnes (roughly the same as a truck) but Otis is more about brains than brawn, using his knowledge of palaeontology to obtain his Diplodocus Diploma. Sure, it's a tough industry to break into, but if he can't find a job in his chosen field, he'll stick with what he knows best: educating dino-adoring children with tales from his Jurassic past.