Amphibians include salamanders, toads and frogs. These animals are closely tied to water. The aquatic habitats in which they are found is important for development of eggs and young. Amphibians are extremely sensitive to negative changes in their environment, including pollution which can be introduced into their systems through their highly permeable skin. In Ontario there are 26 amphibian species, with 7 species considered of conservation concern. This section will introduce you to Ontario’s amphibian species.