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Keywords from Image Description:
Extant tetrapoda. en The four classes of extant tetrapods clockwise from upper left Rana amphibian Opisthocomus bird Eumeces reptile and Mus mammal Original photos are File Frog on bough File Rurrenabaque Bolivia The Amazon File Verletzte Hausmaus File Eumeces laticeps male own Petter Bckman Montages of animals