The Equator is an imaginary line that divides the Earth into the Northern and Southern Hemispheres. It is located at 0 degrees latitude and is the longest circle of latitude, measuring about 40,075 kilometers (24,901 miles) around the globe. The Equator is significant for its role in climate, as regions near it typically experience warm temperatures and high humidity year-round. Countries that lie on the Equator include Ecuador, Colombia, Brazil, Democratic Republic of the Congo, and Indonesia. This region is known for its rich biodiversity and lush rainforests, making it a vital area for ecological studies and conservation efforts.