. The animals and man; an elementary textbook of zoology and human physiology. Zoology; Physiology. THE VERTEBRATES: BIRDS 2IS almost wingless, and the pfenguins have the wings so reduced as to be incapable of flight, but serving as flippers to aid in swimming tmderneath the water. The ostriches and cas-. FiG. 111. Cardinal grosbeak, or red bird, Cardinalis cardinalis. (One- half natural size; from life.) sowaries also have only rudimentary wings and are not able to fly. Legs are present and functional in all birds, vary- ing in relative length, shape of feet, etc., to suit the special perchin
. The animals and man; an elementary textbook of zoology and human physiology. Zoology; Physiology. THE VERTEBRATES: BIRDS 2IS almost wingless, and the pfenguins have the wings so reduced as to be incapable of flight, but serving as flippers to aid in swimming tmderneath the water. The ostriches and cas-. FiG. 111. Cardinal grosbeak, or red bird, Cardinalis cardinalis. (One- half natural size; from life.) sowaries also have only rudimentary wings and are not able to fly. Legs are present and functional in all birds, vary- ing in relative length, shape of feet, etc., to suit the special perching, running, wading, or swimming habits of the various kinds. Living birds are toothless, although certain. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Kellogg, Vernon L. (Vernon Lyman), 1867-1937; McCracken, Mary Isabel. New York, H. Holt and Company
Size: 1499px × 1666px
Photo credit: © The Book Worm / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookd, booksubjectphysiology, booksubjectzoology
