Labels:mammal | animal | text | dinosaur OCR: POSTURE UPRIGHT LIMBS GAVE dinosaurs big advantages over sprawling reptiles like lizards. An erect stance reduced stress on the dinosaurs' limb bones. It reduced the effort needed to keep their bodies up off the ground. It also lengthened their stride, which helped some two-legged dinosaurs to run very fast. DINOSAUR BODY Held clear off the ground ERECT LIMBS Not bent out at the knees or elbows ANIMAL POSTURE An animal's stance determines bow ERECT STANCE it moves and behaves.
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