The water-holding frog
The zenith of amphibian's adaptations to minimize their dependence on water under arid conditions is the water-holding frog, Cyclorana which inhabits the central desert regions of Australia. During the brief and infrequent periods of rain these frogs feed on the flush of insects, they mate and lay their eggs in tepid shallow pools of water, the eggs hatch and tadpoles rapidly develop into froglets. As the rain soaks away the frogs and froglets absorb as much water as possible and bury themselves deep into the sand where they secrete a membrane around themselves to prevent moisture loss. They remain in this condition until the first significant rains, which could be in several years time.