Craniate with well-defined heads, thus excluding members of the chordate subphyla Tunicata (tunicates) and Cephalochordata (lancelets), but including Myxini, which have cartilaginous skulls and tooth-like structures composed of keratin. Craniata also includes all lampreys and armoured jawless fishes, armoured fish, sharks, skates, and rays, and teleostomians: spiny sharks, bony fish, lissamphibians, temnospondyls and protoreptiles, sauropsids and mammals. The craniate head consists of a brain, sense organs, including eyes, and a skull. In addition to distinct crania (sing. "cranium"), craniates possess many derived characteristics, which have allowed for more complexity to follow. Molecular-genetic analysis of craniates reveals that, compared to less complex
Animals Are Like That describes the animals in their native haunts, the capture of some of them, their characteristics, and their reactions in captivity...filled with adventure and odd bits of animal lore." Booklist 36:170 Jan 1, 1940<br> "The vast legion of Frank Buck's followers will find "Animals Are Like That" thoroughly enjoyable and instructive reading. When the author doesn't know the answer to some more intangible animal trait he frankly admits his deficiency; but this happens infrequently. Mr. Buck has selected a large number of excellent illustrations..." Springfield Republican p10 Nov 29, 1939<br> "A fascinating study of animal traits." The Montreal Gazette - Dec