Since he was 14, Al-Amin has tapped gum arabic, the resin of an acacia tree that thrives in Sudan's conflict states -- "manna" from heaven for some, a key ingredient in Coca-Cola for others.
Environment
Nov 25, 2011
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Climate change, land use and other human-driven factors could pit savannas and forests against each other by altering the elements found by Princeton University researchers to stabilize the two. Without this harmony, the ...
Environment
Oct 31, 2011
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For a long time, ecologists have believed—and others accepted—that when it comes to whether a land mass is covered with forests or grasslands, climate controls the show. They thought that the amount of rain, temperature ...
Environment
Oct 14, 2011
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(PhysOrg.com) -- Two recent studies have found that environmental changes can bring previously stable forests and grasslands to tipping points that produce sudden large-scale and sometimes irreversible changes in which forest ...
(PhysOrg.com) -- The lone bull elephant is an image as iconic to the African savanna as the lonesome cowboy on horseback is to the American West. Although female elephants form tightly knit groups guided by a matriarch, ...
Plants & Animals
Sep 15, 2011
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Contrary to the belief of many scientists (as well as many members of the public), new research confirms that Africa has two—not one—species of elephant. Scientists from Harvard Medical School, the University of ...
Plants & Animals
Dec 21, 2010
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Paraguay suspended a British scientific expedition into the remote Chaco woodlands after indigenous rights groups raised concerns over the welfare of protected tribes in the region.
Environment
Nov 16, 2010
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Staff at the Morrison Natural History Museum have again discovered infant dinosaur footprints in the foothills west of Denver, Colorado, near the town of Morrison. Dating from the Late Jurassic, some 148 million years ago, ...
Archaeology
Nov 1, 2010
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Using sophisticated airborne imaging and structural analysis, scientists at the Carnegie Institution's Department of Global Ecology mapped more than 40,000 termite mounds over 192 square miles in the African savanna. They ...
Ecology
Sep 7, 2010
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(PhysOrg.com) -- Ardipithecus ramidus - a purported human ancestor that was dubbed Science magazine's 2009 "Breakthrough of the Year" - is coming under fire from scientists who say there is scant evidence for her discoverers' ...
Archaeology
May 27, 2010
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