Class Reptilia: scaled, ectothermic vertebrates that breathe air throughout life, including snakes, lizards, turtles and crocodilians. Excludes amphibians, whose skin is not scaled and whose early life is typically aquatic and gilled.
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1. Wikipedia: Reptile
WikipediaReptile, lead sectionQuote, Reptile, lead section
Most reptiles are oviparous with shelled eggs, although several species of squamates are viviparous, as were some extinct marine reptile clades.
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