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The trumpeter swan is the largest extant species of waterfowl, and both the heaviest and longest native bird of North America. Adults usually measure 138–165 cm (4 ft 6 in – 5 ft 5 in) long, though large males can exceed 180 cm (5 ft 11 in) in total length. [3] [14] [15] [16] The weight of adult birds is typically 7–13.6 kg (15–30 lb ...
Contemporary political/physical map of North America. The History of North America encompasses the past developments of people populating the continent of North America. While it was commonly accepted that the continent first became inhabited by humans when individuals migrated across the Bering Sea 40,000 to 17,000 years ago, [1] more recent ...
Psophia is a genus of birds restricted to the humid forests of the Amazon and Guiana Shield in South America. It is the only genus in the family Psophiidae. Birds in the genus are commonly known as trumpeters, due to the trumpeting or cackling threat call of the males. [1] The three species resemble slightly taller, longer-legged chickens in ...
Map of early human migrations based on the Out of Africa theory; figures are in thousands of years ago (kya). [1]The peopling of the Americas began when Paleolithic hunter-gatherers (Paleo-Indians) entered North America from the North Asian Mammoth steppe via the Beringia land bridge, which had formed between northeastern Siberia and western Alaska due to the lowering of sea level during the ...
Although the idea of Norse voyages to, and a colony in, North America was discussed by Swiss scholar Paul Henri Mallet in his book Northern Antiquities (English translation 1770), [39] the sagas first gained widespread attention in 1837 when the Danish antiquarian Carl Christian Rafn revived the idea of a Viking presence in North America. [40 ...
The following outline is provided as an overview of and topical guide to North America. North America is a continent [ 1 ] in the Earth 's Northern and Western Hemispheres . It is bordered on the north by the Arctic Ocean , on the east by the North Atlantic Ocean , on the southeast by the Caribbean Sea , and on the south and west by the North ...
1493: Columbus arrives in Puerto Rico. 1494: Columbus arrives in Jamaica. 1496: Santo Domingo, the first European permanent settlement, is built. [ 7 ] 1497: John Cabot reaches Newfoundland. [ 8 ] 1498: In his third voyage, Columbus reaches Trinidad and Tobago. 1498: La Isabela is abandoned by the Spanish.
North America covers an area of about 24,709,000 square kilometers (9,540,000 square miles), representing approximately 16.5% of the Earth 's land area and 4.8% of its total surface area. It is the third-largest continent by size after Asia and Africa, and the fourth-largest continent by population after Asia, Africa, and Europe.