Gum arabic potential cure for Sudanese ills

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.

Savannas, forests in a battle of the biomes, researchers find

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 ...

Ecosystem management must consider human impact too

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 ...

Forest and savanna can switch quickly

(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 ...

Bull elephants' social behavior varies with the rainfall

(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, ...

Seeing double: Africa's 2 elephant species

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 ...

Paraguay nixes expedition to remote tribal region

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.

Researchers discover baby sauropod tracks

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, ...

Termites foretell climate change in Africa's savannas

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 ...

page 4 from 5