ocr: SKELETON A BIRD's SKELETON is LONG specially adapted for BEAK RIB CAGE flight. Compared to the Stretching from the skeleton of most reptiles sternum to the backbone, and mammals, it is very the ribs protect internal the organs bird's light - only five percent of a bird's weight. This is partly because a bird has STERNUM AND KKEEL fewer bones than ground- living animals have, and FALSE KNEE also because its largest Though this is the bones are hollow, while bird's ankle, it others are paper-thin. functions like a knee TARSOMETATARSUS WHITE STORK SKELETON The lower leg bone is The. skeleton anch ...
