Thanks everyone for your help. My daughter, Shana, and I have searched the rice paddy everyday since and have not found another white tadpole or frog. There seems to be two species of frogs in this paddy (Rana (Pelophylax) nigromaculata and Hyla japonica). All the tadpoles and frogs we have found and released show no abnormalities. (At least 100) Can anyone offer any information to help Shana with this research? She is only in the 4th grade, with very little knowledge of genetics. How do you explain mutations and cell dynamics to a 9 year old? How rare of a find is this? Does anyone know if there has ever been a leucistic frog? I appreciate all of your advice.

Lisa