This loop trail (.6 mi.) crosses slickrock dimpled with
depressions called potholes. During periods of heavy rain, water
collects in these natural basins. Within a few days a fascinating
variety of invertebrates hatch from eggs or emerge from dormancy to
complete their life cycles. Pools form with tiny animals dependant
upon a puddle of water for their existence. Look closely but don't
touch. Caption in the lower right of the picture: Adult
tadpole shrimp (top) and clam shrimp (bottom) must lay their
drought-tolerant eggs before the pool dries up. Here a female
tadpole shrimp digs in the sediment to bury her eggs.