Amphibian Survival Group works to save threatened frogs , toads , salamanders . One in three of 6,000 recognized amphibian species at risk of extinction , group says . 122 amphibian species have gone extinct since 1980 , group says . Amphibian species can help in development of medicines , scientist says .
Amphibian Survival Alliance aims to save threatened frogs , toads , salamanders . One in three of 6,000 recognized amphibian species at risk of extinction , group says . 122 amphibian species have gone extinct since 1980 , group says . Amphibian species could help in development of medicines , scientist says .