31. Parasaurolophuses were large plant-eating dinosaurs belonging to a numerous clan known as hadrosaurs, or " duckbills ." 32. Traditional cross country boots use the 75mm Nordic Norm, but the toe flange is informally known as the " duckbill ". 33. It would be a primitive duckbill dinosaur, not all crested and not having the strange head ornaments that later duckbills took on, 34. It would be a primitive duckbill dinosaur, not all crested and not having the strange head ornaments that later duckbills took on, 35. "We knew duckbills lived here because of the worn-out teeth " found in the area, Jacobs said. 36. The initial design, the " duckbill , " had three tines or prongs and was prone to breakage and getting entangled in vegetation. 37. No plant-eating Triceratops or duckbill dinosaur was safe when a hungry T . rex came around with sharp teeth ready to tear flesh. 38. When a fluid is pumped through the supply line and therefore the duckbill , the flattened end opens to permit the pressurized fluid to pass. 39. What they have since determined is that the bones came from a duckbill older than any other member of that species ever discovered in North America. 40. Military versions of the Ithaca 37 with " duckbill " choke were used in limited numbers during the Vietnam War by US Navy Seals.
