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Welcome to the Amphibian Ark A range of resources that we hope amphibian program managers will find useful. This new and comprehensive document offers great advice for managers of amphibian conservation programs Amphibians are an important component of the global ecosystem as indicators of environmental health and contributors to human health. They watched the dinosaurs come and go but today almost half of them are themselves threatened with extinction. Addressing the amphibian extinction crisis represents the greatest species conservation challenge in the history of humanity.