Rainforest: Learn about rainforests

Learn about rainforests, forests with a closed canopy and high humidity, found in tropical and temperate regions. Discover the different types, layers, biodiversity and threats of rainforests, and how they are important for the Earth's climate and medicine. Rainforest, luxuriant forest, generally composed of tall, broad-leaved trees and usually found in wet tropical uplands and lowlands around the Equator. Rainforests usually occur in regions where there is a high annual rainfall of generally more than 1,800 mm (70 inches) and a hot and steamy climate. A rainforest is a very dense, relatively warm, wet forest. Rainforests can be tropical, subtropical, and temperate forests. A tropical rainforest is one that lies between the Tropic of Cancer and the Tropic of Capricorn. A subtropical rainforest is one that lies immediately north or south of the tropics (north of the Tropic of Cancer and south of the Tropic of Capricorn) to about 35 degrees latitude. Air temperature in these forests rarely goes below freezing. A temperate rainforest is one ... Tropical jungle, also known as rainforest, is a lush backcountry made primarily of tall, wide-leaved trees; that is typically found in tropical uplands and marshes near the equator.