the fourth largest of the continents, bordering on the Caribbean in the north, the Pacific in the west, and the Atlantic in the east and joined toCentral America by the Isthmus of Panama. It is dominated by the Andes Mountains, which extend over 7250 km (4500 miles) and include many volcanoes; ranges from dense tropical jungle, desert, and temperate plains to the cold wet windswept region of Tierra del Fuego. Pop (Latin America and the Caribbean): 558 281 000 (2005 est). Area: 17 816 600 sq km (6 879000 sq miles)