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“Long before it’s in the papers”
January 08, 2009
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= EXCLUSIVES =
CONTENTS
Ancient African exodus mostly involved men: geneticists How unusual cells may hold key to HIV control Photo captures 3 planets in far-off system “Other half” of Darwin’s theory passes test Researchers explore amnesia, sex link Report: cells “from space” have unusual makeup Washington’s doctors absolved Dolphins and the evolution of teaching “Extreme” rain follows global warming Drug may trick body into “thinking” you worked out Tit-for-tat: birds found to repay wartime help Eat the parents Martian “Yellowstone” might have nourished life Dip in brainpower may follow drop in real power Musical genes may be coming to light The inbred—betrayed by scent? The evolution of drug abuse After jeers, some recognition for “reverse evolution” theorist Moon systems, not planets, may be place to find aliens A function for “gay genes” after all? Claim of alien cells in rain may fit historical accounts: study Study gives beauty some of its mystery back Google’s kinship with the mind Drastic diet may extend human life, study finds Genes affecting generosity may be found
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“Out of Africa” came mostly men, geneticists say
An ancient migration from Africa is thought to have led to most human populations outside the continent.
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How unusual cells may hold key to HIV control
Rare people who manage to control HIV on their own are offering new insights into how the immune system kills infected cells.
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Photo captures 3 planets by distant sun
The technology for imaging worlds in far-off solar systems is making strides, astronomers say.
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Videogame craving may rev up brain’s addiction circuits
When the urge to play a video game strikes, some players show similar brain activity to that of drug addicts, a study suggests.
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“Other half” of Darwin’s theory passes test
Some flirtatious microbes have confirmed Darwin’s view of how sexual advertising evolves, biologists say.
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Researchers explore amnesia, sex link
Investigators are puzzled by reports suggesting sexual intercourse may occasionally lead to temporary amnesia.
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Report: cells “from space” have unusual makeup
A lineage of mysterious microbes found in some rain give off colors in a strange way, two scientists are reporting.
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Washington’s doctors absolved
The statesman was beyond help when his much-maligned doctors found him one fateful morning, a study concludes.
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Dolphins and the evolution of teaching
Some dolphins seem to teach their young to forage, by repeating actions many times and “pointing” at things, scientists report.
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“Extreme” rain follows global warming
Heavy rain is coming unexpectedly more often as global warming continues, researchers say.
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Drug may trick body into “thinking” you exercised
A new study is creating both hope, and worries that a remarkable substance could be ripe for abuse.
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Tit-for-tat: birds found to repay wartime help
Pied flycatchers and red-winged blackbirds share two traits, studies suggest: they’re feisty defenders and shrewd account keepers.
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Eat the parents
In a practice thought to be over 100 million years old, some creatures feed on their mothers’ skin.
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Tests back up theory of hot springs on Mars
Mars may have experienced life-giving processes similar to those that occur at Yellowstone National Park, researchers say.
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Dip in brainpower may follow drop in real power
Researchers say lack of status seems to erode mental function—with complicated implications for society.
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Musical genes may be coming to light
Musical ability seems to share genetic roots with language, scientists report.
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The inbred—betrayed by scent?
Female mice can sniff out inbred males, and the same might be true of other species, researchers say.
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The evolution of drug abuse
New research challenges traditional explanations of why we wallow in chemical gratification.
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After jeers, some recognition for “reverse evolution” theorist
A leading scientific journal is set to publish genetic findings by a researcher of people who walk on all fours.
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Moon systems, not planets, may be place to find life
Alien life might be both easier and more interesting to discover through a new strategy, a study suggests.
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A function for “gay genes” after all?
Studies of some unusual men in the remote Pacific have led scientists to surprising conclusions.
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Study revisits bizarre
theory
of alien cells in rain
A controversial claim concerning recent strange, red rains may fit with some historical accounts, a study concludes.
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Science gives beauty some of its mystery back
There may be more to good looks than averageness, after all.
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Google’s kinship with the mind
Thinking and using a Web search engine might seem to be very different activities. But a study suggests they draw on similar principles.
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Drastic diet may extend human life: study
Researchers knew it worked in animals, but whether we’d get the benefits has been unclear.
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Genes affecting generosity may be found
One gene underlying altruism is an evolutionarily ancient strip of DNA also found in rodents, a study indicates.
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Probing ancient shipwrecks with DNA
DNA can help tell what long-sunken transport jars contained, say scientists studying a Greek wreck.
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=
MORE NEWS =
CONTENTS
Old drug may slow aging, researchers say Black holes came first, astronomers conclude Our galaxy no longer “little sister” Materials for “Earths” common in universe, researchers say Using light beams to grab molecules Competition, not climate, killed Neanderthals: study Life got bigger in two, millionfold leaps, researchers say Still today, most will torture if ordered: study Odd bird fathering styles may come from dinos Is global warming preventing an Ice Age? At least 8 genes tied to obesity, all in brain God, science not an easy mix for many Wobbly planets could reveal Earth-like moons Distant moons may have liquid oceans Chemistry of other stars’ planets coming to light Scientists: brain drugs OK for healthy people Poverty may reduce kids’ brain function Happiness spreads socially, study finds Scientists produce illusion of body-swapping Did a modern-day scourge save ancient Earth? Canada skyburst blamed on 10-ton rock Oceans acidifying much faster than was thought: study Needy amoebae reach out to “family” Microbes may help fossilize ancient embryos
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Our galaxy no longer “little sister”
Fasten your seat belts: our galaxy spins faster, weighs more, and is more likely to collide than we thought, researchers claim.
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Materials for “Earths” may be common in universe
New findings add to evidence that rocky planets are a normal occurrence, astronomers say.
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Using light beams to grab molecules
Researchers say they’ve created a trap that can capture DNA molecules and other tiny objects.
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Life grew in two, millionfold leaps, researchers say
Earth’s creatures come in all sizes, yet scientists believe they all descend from the same single-celled organisms.
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Competition, not climate, killed Neanderthals: study
The stocky breed of early humans couldn’t hold its own against more modern populations, scientists claim.
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Still today, most will torture if ordered: study
Scientists say they have replicated an experiment in which people would obediently give painful shocks to others when prompted.
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Is
global warming preventing an Ice Age?
While human-caused effects are potentially leading Earth to disaster,
they may also be preventing a cold spell, some researchers say.
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Odd bird fathering styles may come from dinos
Males in some flightless bird species are devoted fathers—and polygamists.
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At least 8 genes tied to obesity, all in brain
Variants of at least eight genes contribute to determining body weight, scientists have found.
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Wobbly planets could reveal Earth-like moons
Moons outside our Solar System capable of supporting life may have just become easier to find.
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God, science no easy mix for many
In many or most people’s minds, religion and science conflict fundamentally, a study suggests.
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Distant moons may have liquid oceans
Tidal motions may generate enough heat to maintain liquid oceans within the outer planets’ icy moons, a scientist says.
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Chemistry of other stars’ planets coming to light
Astronomers have identified carbon dioxide around a planet outside our solar system.
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Brain drugs for healthy people OK: scientists
Healthy people should be allowed to take brainpower-boosting drugs, if the risks are properly managed, some researchers say.
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Poverty may reduce kids’ brain function
Scientists are calling new findings an alarming “wake-up call.”
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Happiness spreads socially, study finds
Your happiness may depend on many people you don’t know—friends of friends of friends.
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Did a modern-day scourge save ancient Earth?
A gas blamed for global warming may once have helped Earth escape a deep freeze, some scientists propose.
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Scientists produce illusion of body-swapping
Neuroscientists say they have gotten people to perceive the bodies of mannequins and other people as their own.
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Canada skyburst attributed to 10-ton rock
Researchers have been collecting witness reports and data on a giant flash in the skies over western Canada Nov. 20.
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Oceans acidifying much faster than was thought: study
The process could pose a threat to some ocean life, scientists argue.
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Needy amoebae reach out to “family”
When in distress, some single-celled creatures seek the support of kin, researchers say.
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Microbes may help fossilize ancient embryos
Bacterial decay was once viewed as the mortal enemy of fossilization, but a new study suggests otherwise.
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| World
Science Archive
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The wake of a
jellyfish Ghostly ripples
form in the water behind a swimming jellyfish. But these normally cannot be
seen. For the photo above, scientists used dye to reveal
the vortex-like
motions in the water behind the moon jellyfish Aurelia victoria.
The work
was part of a project to learn more about the global movement of jellyfish,
including why non-native species may suddenly take root in particular areas and
why jellyfish population explosions occur unexpectedly. Conducted by Michael Dawson of the University of California at Merced and others, the study incorporated computer simulations of the global distributions of populations of moon jellyfish over the last 7,000 years, based on ocean currents, the modest swimming abilities of jellyfish and other factors.
(Image courtesy Sean Colin, Roger Williams University, and John Costello, Providence College)
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