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Wild Kingdom can be credited for increasing ecological and environmental awareness in the United States. Its exciting footage brought the wilds of AfricaAfrica is the world's second-largest continent in both area and population, after Asia. 30,244,050 km2 (11,677,240 mi2) including the islands, it covers 20. 3% of the total land area on Earth, and with over 800 million human inhabitants it accounts for ar, the Amazon RiverThe Amazon River (occasionally River Amazon Spanish: Rio Amazonas of South America is one of the two longest rivers on Earth, the Nile River of Africa being the other. It has by far the greatest total flow of any river, carrying approximately 56 times as and other exotic locales into the living rooms of millions of Americans. It created an interest in commercial nature programming that was a precursor to cable televisionCable television or Community Antenna Television CATV (and often shortened to 'cable') is a system of providing television, FM radio programming and other services to consumers through fixed coaxial cables, rather than by the older and more widespread rad networks such as the Discovery ChannelImage use policy Discovery Channel is an American cable TV network that has a variety of science programming, particularly documentaries and nature shows. Discovery Channel went on the air in 1984 and is owned by Discovery Communications, which also owns and Animal PlanetAnimal Planet launched in 1996, is a cable television network dedicated to programming that highlights the relationship between animal and man. It is available throughout the United States and in over 70 countries around the world. Among its most popular.