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This brief introduction explores the fascinating world of reptiles and amphibians. Reptiles, including snakes, turtles, and lizards, are cold-blooded creatures known for their dry, scaly skin and reproductive methods involving water-tight eggs or live birth. In contrast, amphibians like frogs and salamanders lay jelly-like eggs in water, have moist skin, and undergo metamorphosis from larvae to adults. Learn about their unique adaptations, reproductive strategies, and where to find them, such as at the Smithsonian National Zoo and St. Louis Zoo.
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Reptiles and Amphibians A Brief Introduction
REPTILES (Examples: Snake, Turtle, Lizard, Crocodilian) • Cold Blooded (same temperature as surroundings) • Lay water tight eggs on land or give birth to live young • Skin is dry and covered with scales • No Metamorphosis (young look much like adults) • Male has intromittent organ and deposits sperm in female
Amphibians (Frogs, Toads, and Salamanders) • Cold Blooded (Body is same temperature as surroundings) • Lay Jelly like eggs in water • Skin is moist and has no scales • Metamorphose from larval stage to adult • Male deposits sperm externally
Remarkable Reptiles • Lizards • Have cylindrical bodies and short legs • Climbers have long tail for support and balance • Snakes • Have no ears and cannot hear • Use tongue for smelling • Swallow prey whole using hinged jaw
Where to find Reptiles and Amphibians • Smithsonian National Zoo • St. Louis Zoo
