Life
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We summarize the week's scientific breakthroughs every Thursday.
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LifeStep-by-step Evolution
Hard to find, but very fruitful when found, transitional fossils fill in the gaps in the paleontological record.
By Sid Perkins -
LifeA Most Private Evolution
The most dramatic examples of the power of evolutionary theory may come from the strange and ugly stuff — biology too dumb to have been designed.
By Susan Milius -
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ComputingComputing Evolution
Scientists sift through genetic data sets to better map twisting branches in the tree of life.
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LifeFor worms, one gene can change survival behavior
Natural differences in a single gene cause worms to either eat or avoid harmful bacteria.
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LifeCapuchin monkeys choose the right tool for the nut
New field experiments indicate that wild capuchin monkeys choose the most effective stones for cracking nuts, suggesting deep evolutionary roots for the use of stone tools.
By Bruce Bower -
LifeDinosaur fossil reveals creature of a different feather
Paleontologists have discovered a fossil partially covered with broad, unbranched filaments — a type of structure previously theorized to exist on primitive feathered dinosaurs but not found until now.
By Sid Perkins -
LifeGenetic sameness could be factor in Tasmanian tiger extinction
The first complete mitochondrial genome of the Tasmanian tiger is revealed. Analysis shows little genetic diversity.
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LifeSuperloud moth jams bat sonar
Newly recorded moth could be the first demonstrated case of natural sonar-jamming.
By Susan Milius -
LifeLove song of the dengue vector mosquito
Male and female mosquitoes harmonize pitch when in the mood.
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Health & MedicineSirtuin shown to control gene activity
A previously overlooked protein called SIRT6 provides some molecular clues to aging.