Labels:bulletin board | dialog box | sky | vegetarianism | window OCR: EQUIPPED TO FLY What distinguishes birds from all other animals is that they have feathers It is the strong but lightweight feather that gives shape to the wing bird wing is rounded above and hollowed underneath. This shape enables the bird to cut through the air and produce lift, It is lift that counteracts the force of gravity and allows birds to rise into the sky leaving behind the Earth and its en vious humans auimals curved Itic eravity
