Why are frogs good indicators of environmental pollution?
Frogs are good indictors of environmental pollution because of their unique physiology. The semi-permeable skin of adult frogs and the gills tadpoles use to breathe are both characteristics that make these animals very susceptible to contaminants. This is because chemicals easily penetrate these exposed areas. Frogs are also more likely to come into contact with chemicals as they inhabit both aquatic and terrestrial environments.
