The tiger (Panthera tigris) is the largest cat species, reaching a total body length of up to 3.38 m (11.1 ft) over curves and weighing up to 388.7 kg (857 lb) in the wild. Its most recognisable feature is a pattern...

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A falcon (/ˈfɔːlkən/ or /ˈfælkən/) is any species of raptor in the genus Falco. The genus contains 37 species, widely distributed throughout Europe, Asia, Africa, Australasia and North America. Adult falcons have thin tapered wings, which enable them to fly at...

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Great Basin Desert

The sprawling Great Basin Desert gives North America a cold, interior rain shadow desert to rival Asia’s Gobi Desert. Haunted by the harsh winters of its 6,000–7,000-foot (2,000–2,333 m) elevation, screened from rain by the towering Sierra Nevadas and California to...

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Lake Vänern

On a map of Sweden, Lake Vänern would take a big fresh bite out of the country’s middle. About 2,150 square miles (5,600 km2) in extent, it is 87 miles long (140 km) and decorated with a large archipelago of islands...

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Mount Kilimanjaro

Mount Kilimanjaro /ˌkɪlɪmənˈdʒɑːroʊ/, with its three volcanic cones, Kibo, Mawenzi and Shira, is a dormant volcanic mountain in Tanzania. It is the highest mountain in Africa and the highest free-standing mountain in the world at 5,895 metres (19,341 ft) above sea...

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The Yangtze

Measuring some 3,915 miles (6,300 km) long, the Yangtze (also Yangtse, Yangzi, or Chang) claims third place among the world’s longest rivers. This wondrous yet formidable river originates on the southeast edge of the great steppes of central Asia. Rising almost...

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Great Blue Hole

The Great Blue Hole, near Belize City, Belize Lighthouse Reef as seen from space. The Great Blue Hole is near the center of the photograph. The Great Blue Hole is a large submarine sinkhole off the coast of Belize. It lies...

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