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Chimps Employ Culture to Branch Out
Chimpanzee groups vary in specific behaviors, creating a wide array
of traditions that have much in common with human culture.
Raloxifene imparts anticancer
The anti-osteoporosis drug raloxifene seems to prevent breast cancer
in many postmenopausal women worldwide.
Atlantis of the iguanas found
Ancient copies of the Galápagos Islands now rest more than 1,000 meters
below the ocean surface off the coast of Costa Rica and suggest how
Galápagos iguanas could have a long evolutionary history.
Polluted air chokes northern Indian Ocean
Last winter and spring, a thick, sooty haze covered such massive areas
of the Indian Ocean that scientists are astonished.
Coating lets ink-jet prints dry quickly
A coating on photographic paper immobilizes water-based ink droplets,
reducing the chance of smearing.
The buzz: Wings flip, air whirls, bugs lift
Although conventional aerodynamics predicts that bugs shouldn't be able
to get off the ground, experiments with robotic fly wings have now revealed
the range of flapping motions that give insects aerodynamic lift.
Galaxy study challenges cosmic-age
The cosmos may be several billion years younger than the age astronomers
recently reported, according to a direct measurement of the distance
to a nearby galaxy.
Boosting tomato's SOS gets pests killed
Boosting a plant's natural SOS signals pays off by luring in extra helpers
that trash attacking caterpillars.
Good-bye to a Greenhouse Gas
Dumping carbon dioxide underground or in the oceans could slow
Researchers study ways to bury carbon dioxide and thereby slow its atmospheric
buildup and reduce the threat of climate change.
Building Better Bandages
New dressings include natural clotting agents
Bandages that incorporate the body's clotting agents may stop people
from bleeding to death.
Forget to remember to forget
Emotional recollections of childhood sexual abuse may cause some people
to forget they had prior, factual memories of the same incidents.
Hooked on a feeling
Cigarette smokers trying to kick the habit experience emotional reactions
that reduce their ability to quit.
Nanobacteria strike the kidney again
Recently discovered microbes called nanobacteria may exacerbate a genetic
The explosive downside to zapping bugs
Bug zappers spray insect-borne bacteria and viruses as far as 6 feet.
Brain angioplasty may prevent strokes
Angioplastya technique in which a tiny balloon is inflated in
a clogged artery to facilitate blood flowworks in the brain as
well as the heart.
Brain anomalies seen in former preemies
Infants born 5 weeks premature are more likely to have abnormal brain
scansand behavioral troublesin adolescence than are babies
born full term.
New shards of electron charge found
Bizarre quasiparticles that result from interactions among electrons
but carry only one-fifth the electron's charge have been found under
conditions of extreme cold, confined electron motion, and strong magnetic
Revived collider seeks physics first
The world's highest-energy particle accelerator has fired up again after
3 years of extensive renovations that will enable it to produce 10 times
as many proton-antiproton collisions as before.