Acidity of waters and UV-B radiation often increases the toxicity of contaminants. Thousands of new agricultural and industrial compounds are coming into the market and the environment. Toxicity tests on plants and animals are inadequate to determine the impacts in the environment where unforseen combinations of chemicals may exert additive or synergistic effects. Wetlands as Repositories . Deformed Frogs Natural Rate .
Deformities occur within all plants and animals.
None of the species most affected by deformities are endangered. Contaminants and Deformities . Recent Prominence . The prominence of deformities in amphibians has only appeared during the last 3 years. While there are historical accounts of malformed frogs in the literature the number of locations and proportions appear to be unprecedented.