11. The duckbill Corythosaurus had a bony helmet reminiscent of a gladiator's. 12. In fact, the duckbills as a group are now often called hadrosaurs. 13. Duckbill eels are found along the continental slopes of tropical and temperate oceans worldwide.14. "Duckbill preferes to stick to make changes and afterwards explaining them ." 15. Finsley said Thursday from his office during a rain-forced break in the duckbill dig. 16. Previous work in the area indicates the duckbill lived in swampy lowlands, according to Jacobs. 17. Duckbill flash suppressors have upper and lower " prongs " and direct gases to the sides.18. The mascots for the ICOCA program consist of a blue platypus ( or duckbill ) called and. 19. A couple of miles to the east lay a marshy lowland bordering the limestone duckbill and theropod dinosaurs. 20. When pressure is removed, however, the duckbill end returns to its flattened shape, preventing backflow.