There are approximately 17,500 species of butterflies in the world, some familiar, some very rare. This National Geographic Butterflies calendar showcases some of the most beautiful specimens in their natural habitats. This twelve month calendar displays these small wonders of nature close-up and in full detail. Each image is accompanied by fascinating National Geographic information and a large grid with moon phases and international holidays. Proceeds from the sale of National Geographic calendars support vital exploration, conservation, research and education programs. The calendar includes a 3-year at-a-glance page and is earth friendly, printed with soya-based inks on FSC certified paper.