Search Results for: Forests
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5,531 results for: Forests
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EcosystemsThe Buzz over Coffee
Most people consider the continued spread of Africanized honeybees in the Americas as horrifying news. Nicknamed killer bees, these notorious social insects rile into stinging mobs with little provocation. But new research finds evidence that these irritable insects have been performing a hitherto unrecognized service for people around the world. They’ve helped keep down the […]
By Janet Raloff -
Health & MedicineWest Nile Worries Are No Reason to Give Up Breast-feeding
West Nile virus infections are spreading like wildfire–and not just through bug bites. Although the vast majority of the nearly 2,800 U.S. cases reported to the Centers for Disease Control and Prevention (CDC) so far this year were picked up from mosquitoes, at least 3 people–and possibly 15–appear to have acquired the virus from infected […]
By Janet Raloff -
Health & MedicineA Make-Time-For-Sex Diet?
We’re slaves to our hormones. Teenagers and pregnant women are experts on that topic. Both ride an emotional roller coaster as their bodies produce vacillating amounts of sex hormones. In fact, behind the scenes of all human biology–from conception to death–a delicate interplay of hormones drives everything from the expression of our gender to regulation […]
By Janet Raloff -
AgricultureFluid Security—Overcoming Water Shortfalls in the 21st Century
About 70 percent of Earth’s surface is covered with water, some 1.4 billion cubic kilometers of it. Too bad almost 96.5 percent of it’s salty, and another 2 percent is locked away as ice in remote places such as Greenland and Antarctica. All told, just a little more than 1 percent of our planet’s water […]
By Sid Perkins -
Health & MedicineA Virus Crosses Over to Wild-Animal Hunters
A potentially dangerous virus is moving from nonhuman primates to Africans who hunt and eat wild animals, a new study suggests.
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EarthMarsh Farming for Profit and the Common Good
A move is now afoot to get farmers to embrace wetlands as part of their business.
By Janet Raloff -
AgricultureUsing Light to Sense Plants’ Health and Diversity
Laser scanners may help farmers better tailor when and how much to fertilize their crops, with side benefits for the environment.
By Janet Raloff -
ArchaeologyAfter 2,000 years, Ptolemy’s war elephants are revealed
A genetic study sheds light on world’s only known battle between Asian and African elephants.
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AnimalsAlive and Knocking: Glimpses of an ivory-billed legend
New observations confirm that the famed ivory-billed woodpecker has not gone extinct after all.
By Susan Milius -
AnimalsNew Mammals: Coincidence, shopping yield two species
Researchers have identified a new species of monkey in Africa and a rodent in Asia that belongs to a new family among mammals.
By Susan Milius -
HumansWhen Fair Means Superb: Young scientists and engineers meet in international competition
A record 1,447 high school students from 45 countries shone their brightest in Phoenix last week as they competed at the Intel International Science and Engineering Fair.
By Emily Sohn -
Materials ScienceWhisking Whiskers: Nanobrushes sweep up
Researchers have made microscopic brushes with carbon nanotube bristles.
By Peter Weiss