Known to anthropologists and naturalist as "The Malay Equatorial Line", the equatorial line is an imaginary line dividing the earth into two parts from the east to the west in the tropical zone. This make Indonesian have two seasons, the wet and dry season. Because of its location many kinds of flora and fauna live there. According to the astronomical location, Indonesia lies between 6 degrees North Latitude and 11 degrees South Latitude and between 95 degrees East Longitude and 141 degrees East Longitude.