Many amphibians in Colombia, including the Phyllobates terribilis, are facing stress because their habitats are being altered or destroyed by deforestation, logging, agriculture and grazing, and chemicals introduced into nature by humans, such as pesticides, fertilizers, and pollutants. Of the circa 700 species of frogs, toads, and salamanders in Colombia, 200 are endangered. In comparison: all of Europe only has 90 amphibian species!