Vertebrate groups rare in the deserts

Question

Specify the terrestrial vertebrate group that is extremely rare within the deserts.

Answer 1

Amphibians are the terrestrial vertebrates that are found extremely rare within the desertic environments (though there exist few species adapted to this type of ecosystem). Amphibians are rarely found in the deserts as they do not have permeable skin and thus they easily lose water through the evaporation and desiccate. They also require an aquatic environment for the purpose of reproduction, as their fecundation is external and their larva is water-dependent.