Dinosaurs had an upright stance (shown on the left), while lizards and crocodiles have a sprawling stance (shown on the right). Adapted from an image by Fred the Oyster, via Wikimedia Commons, ...

Read on or watch our animation to find out what these were. All dinosaurs had an upright, pillar-like stance. This could support a large body better than the sprawling stance of other reptiles such as ...

inwardly curving back capable of supporting an upright stance. Grasping, opposable big toes helped to stabilize flat feet while walking, the researchers say, while curved fingers, much like those ...