Taipei tree frog
Frogs go back to the same place to lay eggs.  The male frog digs a hole in the mud near a rice paddy or pond, sometimes underneath straw or leaves.  The male frog sits in the hole and sings for the female frogs.  Sometimes the male frogs fight each other.  The female frog then lays her eggs in the hole.  She covers them in foam.  She lays 300-400 eggs at a time.  The tadpole is gray-white in color with spots.  The tadpoles swim in the water at the bottom of the hole for about 40 days.  Then it rains, and the rain pushes the tadpoles into the rice paddy or pond.