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 . The southern gastric brooding frog , for instance , could have led to the development of a treatment for human peptic ulcers had it not gone extinct , Stuart said . Score: 7 Amphibian species could 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 . Score: 7 Amphibian species could help in development of medicines , scientist says .