The see-through skin of an 2.5-centimeter-long glass frog reveals her eggs. Native to Venezuela, the frogs lay eggs in bushes and trees overhanging streams. Tadpoles hatch, then tumble into the current to be swept away.
The Hip Pocket frog. This is called a Male Marsupial frog because like a kangaroo it carries its young in pouches. It has two openings, one on each hip, where tadpoles develop. First the female lays eggs in damp sand, then they are guarded by the male, and finally they hatch into finless white tadpoles, which wriggle their way into the pouches. They emerge 7 to 10 weeks later as froglets. Hip-pocket frogs are terrestrial and live among leaf litter in the forest. Found only in Australia.