more-inWith a bill like a duck but teeth like a crocodile’s, a swan-like neck and killer claws, a new dinosaur species uncovered by scientists looks like something Dr. Seuss could have dreamed up. It also had flippers like a penguin, and while it walked like an ostrich it could also swim. That’s the first time swimming ability has been shown for a two-legged, meat-eating dinosaur. The tiny creature, only about 45 cm tall, roamed 75 million years ago in what is now Mongolia. For example, an arm hidden in the rock perfectly matched the visible left arm, and lines indicating growth matched up across the bones.