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Name of terrestrial vertebrate group very rare in desert

Write down the name of terrestrial vertebrate group which is extremely rare in deserts.

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Amphibians , it is a terrestrial vertebrate group which is extremely rare in desertic environments (though there are few species acclimatized to this sort of ecosystem). Amphibians are exceptional in deserts because they don’t enfold permeable skin and so they easily lose water through evaporation and desiccate. They also require an aquatic environment or atmosphere to replicate, since their fecundation is exterior and their larva is dependent on water.

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