These animals exhibit a unique adaptation with pharyngeal villi that enable some species to extract oxygen from water, facilitating prolonged underwater stays. Both the pectoral and pelvic girdles are enclosed within this animal’s rib cage, a feature not found in other vertebrates. These animals always retain their nuchal bone, which is covered with (*) scutes (“scoots”). It’s not a bird, but marine species of these animals often appear to be crying due to salt-excreting glands near their eyes. A structure in these animals, whose lower section is called the plastron, consists of fused osteoderms. (10[1])These animals are the only reptiles to lack teeth, and most can retract their heads into their carapaces. For 10 points, name these animals, whose species include the leatherback and the Galápagos giant. ■END■