The world distribution and extent of forest trees are necessary to our knowledge of the biosphere. Scientists provide the first spatially continuous world map of forest tree density. This map shows that the global amount of trees is about three trillion, an order of magnitude greater than the earlier estimate. Of these trees, around 1.30 trillion live in tropical and subtropical forests, with 0.74 trillion in boreal areas and 0.66 trillion in moderate regions. Biome-level trends in tree density display climate and topography's influence in controlling local tree densities at more precise scales and humans' overwhelming effect across most countries. According to research over fifteen billion trees are cut down each year, and the world number of trees has fallen by about 46 percent since the origin of human civilization.
The moose ( Alces alces ) is the largest member of the deer family, characterized by its massive size, long legs, and distinctive broad, palmate antlers found in males. They have a dark brown or black coat and a humped shoulder. Moose are primarily found in the boreal and mixed deciduous forests of North America, Europe, and Asia. They are solitary animals, often found near bodies of water, and are herbivores that feed on leaves, bark, twigs, and aquatic vegetation. Despite their size, moose are strong swimmers and can run up to 35 miles per hour. The moose population in North America is shrinking swiftly. This decrease has been correlated to the opening of roadways and landscapes into this animal's north range. In North America, the moose range includes almost all of Canada and Alaska, the northern part of New England and New York, the upper Rocky Mountains, northern Minnesota and Wisconsin, Michigan's Upper Peninsula, and Isle Royale. In 2014-2015, the North American moo
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