Jungle usually refers to a ense forest in a hot climate, such as a tropical rainforest. The word Jungle originates from the Sanskrit word Jangala which means a desert or uncultivated land. The term Jungle is prevalent in many colloquial languages of the Indian subcontinent and generally used to refer a dense tropical forest or a swamp. About 6% of the Earth's land mass is classified as jungle. Jungles are vital to sustaining the ecosystems of the Earth as we know it. About 57% of all species live in jungle environments .