Hundreds of hot air balloons prepare for flight, firecrackers explode at a vegetarian festival in Phuket, and more in our weekly update of culture photos.
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Roughly 38 percent of the world's known species are near extinction, according to a comprehensive survey done to create the 2008 Red List of Threatened Species.
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Arrows and abandoned huts are fresh evidence that isolated indigenous tribes are being displaced by illegal logging, conservation groups say.
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Researchers can now mass-produce the receptors humans use to detect odors, a discovery with implications for law enforcement, medicine, and the military.
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A five-year review done by experts from 130 countries paints a grim picture for the world's 5,487 known mammal species.
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The first of this year's Nobel Prizes, awarded for medicine, has been jointly won by scientists who identified the viruses that cause AIDS and cervical cancer.
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The 2008 Red List of Threatened Species details dismaying trends. A new "Dow Jones index" approach aims to stem the tide by tracking selected species like stocks.
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The African elephant, Cuban crocodile, and Asian fishing cat are among species elevated to more critical categories on the updated global Red List of Threatened Species.
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Iceland's glaciers could all be gone by the next century, thanks to global warming, a new government report says.
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Some bald eagles are turning to seabirds as their main food, and in a roundabout way, the new diet is traceable to a 1990s otter collapse, researchers say.
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Singing to females lights up reward centers in male zebra finches' brains, a new study shows. The effect possibly "addicts" the birds to courtship.
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A lion mounts a horse, a skull is knifed, China celebrates its first space walk, and more in our picks of the week's news photos.
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The U.S. adventurer's plane "disintegrated" when it hit a California mountain, experts said. The presence of bears and other scavengers may help explain why so few remains have been found.
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The annual Ig Nobel Prizes are given to scientists whose work made readers both laugh and think. This year's honors went to research on everything from puzzling placebos to spermicidal soda.
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Periods of high solar activity create features that make the sun appear to have bigger "love handles," according to a new study of the star's true shape.
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Growing acidity in the world's oceans may create an underwater racket that hinders whales and other animals that rely on sounds for survival, a new study says.
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A newly announced ban on all parrot sales in Mexico may keep the country's exotic birds from dying during clandestine smuggling operations, conservationists say.
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An Earth-spanning boundary separates the Northern Hemisphere's pollution from the more pristine atmosphere of the south, a finding that could help map future movements of harmful chemicals.
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The entire planet comes into stunning focus using a new technique that removes atmospheric distortion.
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A temperature-driven trend toward more females and fewer males in Australia's spotted skink may increase populations in the short-term, a finding that contradicts previous studies.
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