| Family Pelobatidae
            -- the spadefoot toads This family of North American and
            Eurasian frogs is strictly terrestrial, except for the aberrant
            Bornean genus Nesobia, which differs from the rest in
            many ways, including its aboreal proclivities. Most pelobatids
            have a hardened tubercle on each hind foot that can be used to
            burrow backwards into the soil. Many species spend much of their
            lives below ground. Members of the American genus Scaphiophryne
            often breed in temporary pools, and their tadpoles develop with
            startling speed. The tadpoles of some species manifest two forms:
            one specialized to feed on algae, which succeeds better in wet
            years, and another specialized to feed on the algae eaters, which
            succeeds better in dry years. The genus Pelobates of Europe,
            North Africa and the Middle East is very similar to Scaphiophryne.
            The remaining seven genera are Asian and contain a number of
            highly unusual and little known species.Malaysian
            Leaf Frog (Megophrys nasuta) Moist montane forests
            on the Malay peninsula, Borneo, and adjacent islands provide
            the preferred habitat of the Malaysian leaf frog. Like the similar
            but unrelated horned frogs of the South American family Leptodactylidae,
            these anurans live rather static lives, sitting cryptically among
            the leaf litter, awaiting the approach of any creature small
            enough to overpower and cram down their spacious throats. As
            the rainy season commences, the males position themselves along
            streambanks to entice females with loud, metallic honks. The
            tadpoles live suspended from the surface, where they filter microorganisms
            gathered through a funnel-shaped structure at the top of their
            heads.
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