Making sense of the order of the vast animal kingdom is the goal of this eight-book series. Each book provides an overview of a specific animal class or related groups within a class, including behavior, life cycle, communication, conservation, and habitats. How scientists classify organisms is explained before the book goes on to examine the orders and their characteristics. Classification keys and amazing facts are used throughout.
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Amazing facts Amphibia ORDER Caudata Amphibian Behavior Amphibian Orders amphibian species amphibians live animals Anura aquatic backbone breathe breeding season burrow caecilians California newts cane toad carnivores centimeters Chicago CLASS Amphibia ORDER Classification key CLASS crested newts Cryptobranchoidea Cycle Darwin's frog develop embryo example external gills extinct feed female lays fertilized fire salamander fish fossil frog or toad frog's frogs and toads genus giant salamanders grouped habitats hatch hind limbs inches insects interbreed jelly larvae lay their eggs leap legs live on land lives in water look lungs Male frogs moist skin mole salamanders mouth mucus newts and salamanders ORDER Anura ORDER Caudata SUPERFAMILY poison frog ponds to breed predators prey protected Raintree Rana Ranidae reptiles return to water Salamandroidea Salamandroidea FAMILIES Sirenoidea Sirens superfamily SUPERFAMILY Salamandroidea surface survive swim tadpoles tailed amphibians tetrapods tiny tree frogs vertebrates viviparous vocal sac water to breed webbed feet young