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  Definition and Location   Bermuda Triangle Definition: A region in the western part of the North Atlantic ( in and between Bermuda and Florida to Puerto Rico) where ships and airplanes have disappeared under mysterious circumstances.   The Bermuda Triangle is located in the western part of the North Atlantic Ocean, its three vertices are often defined as Miami (Florida); San Juan, Puerto Rico; and Bermuda. There is an estimated 500,000 square miles of area.   Early Incidents   Christopher Columbus: Christopher Columbus reported a great flame of fire (possibly a meteor) that crashed into the sea, and strange compass readings were noted during the passing through the area in AD 1492.   Mary Celeste (1872): Not technically in the Bermuda Triangle, the imagined desertion of the ship Mary Celestedoes appears to recover old stories from the region.   Popularization   Edward Van Winkle Jones (1950): The Bermuda Triangle first gained wide public ...

  Definition   The Wallace Line is a faunal boundary that separates the distinct ecozones of Asia and Australasia. It was first identified by British naturalist Alfred Russel Wallace in the 19th century during his exploration of the Malay Archipelago.   Geographical Location   Position : The Wallace Line runs through Indonesia, between the islands of Borneo and Sulawesi, and between Bali and Lombok.   Ecozones : To the west of the line lie the islands of Sunda land (part of the Asian continental shelf), and to the east lie the islands of Wallacea, which have a mix of Asian and Australasian species.   Biological Significance   Species Distribution : The Wallace Line demarcates a stark contrast in species between the two regions.   West of the Line : Typical Asian species such as tigers, elephants, and rhinoceroses are found.   East of the Line : Species more characteristic of Australasia, including marsupials like kangaroos and monotremes li...