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Ville dyr: krypdyr og froskedyr
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"Assays of assemblages of amphibians and reptiles provide important information on community structure in the tropics. These ectothermic organisms are highly responsive to slight …
Generously illustrated, this essential handbook for herpetologists, ecologists, and naturalists features comprehensive keys to eggs, embryos, salamander larvae, and tadpoles; …
Until now, no detailed treatment of the Pennsylvania herpetofauna has ever been published, nor have recent books dealt with the herpetofauna of the entire northeastern United …