 To this end, there are adaptations for an improved extension of the hindlimb, in the hip joint and the thighbone.It had many sharp, backward-curving teeth in its mouth, a long neck and sensory neurons in its snout that may have allowed it to detect vibrations in water, leading scientists to believe that it hunted aquatic prey.It had to come up onto land to reproduce, because, like all dinosaurs, it needed to lay its eggs on land.