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crocodile
(Encyclopedia) crocodile, large, carnivorous reptile of the order Crocodilia, found in tropical and subtropical regions. Crocodiles live in swamps or on river banks and catch their prey in the water…Plesiosaurus
(Encyclopedia) PlesiosaurusPlesiosaurusplēˌsēəsôrˈəs [key], genus of extinct predatory marine reptiles that arose in the Triassic period of geologic time and continued into the Jurassic and…turtle
(Encyclopedia) turtle, a reptile of the order Chelonia, with strong, beaked, toothless jaws and, usually, an armorlike shell. The shell normally consists of bony plates overlaid with horny shields.…Cuvier, Georges Léopold Chrétien Frédéric Dagobert, Baron
(Encyclopedia) Cuvier, Georges Léopold Chrétien Frédéric Dagobert, BaronCuvier, Georges Léopold Chrétien Frédéric Dagobert, Baronzhôrzh lāôpôldˈ krātyăNˈ frādārēkˈ dägôbĕrˈ bärôNˈ küvyāˈ [key], 1769–…lizard
(Encyclopedia) lizard, a reptile of the order Squamata, which also includes the snake. Lizards form the suborder Sauria, and there are over 3,000 lizard species distributed throughout the world (…hoatzin
(Encyclopedia) hoatzinhoatzinwätsēnˈ [key] [Aztec], common name for a peculiar marsh bird, Opisthocomus hoatzin. The hoatzin is a slender bird with a brownish plumage spotted with white above and…Systematics, Taxonomy, and Classification: Alternative Methods of Classification
Alternative Methods of ClassificationSystematics, Taxonomy, and ClassificationIntroductionLinnaeusSystematics Analysis TechniquesAlternative Methods of ClassificationModern Classification The…pterosaur
(Encyclopedia) pterosaurpterosaurtĕrˈəsôrˌ [key] [Gr., = winged lizard], extinct flying reptile (commonly called pterodactyl [Gr., = wing finger]) of the order Pterosauria, common in the late…Vertebrates
Fish breathe through gills, and live in water; most are cold-blooded and lay eggs (although sharks give birth to live young).Amphibians are cold-blooded and live both on land (breathing with…Table of Geological Periods
It is generally assumed that planets are formed by the accretion of gas and dust in a cosmic cloud, but there is no way of estimating the length of this process. Our Earth acquired its present size…Trending
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