Life
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We summarize the week's scientific breakthroughs every Thursday.
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AnimalsClimate change discourages second families
Birds out of sync with local baby food supply of caterpillars aren’t nesting a second time.
By Susan Milius -
LifeTastes like metal
Scientists have discovered that proteins that help sense sweet and spice also help taste metals.
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PlantsAnimals’ jaundice pigment found in plants
Bilirubin, a compound well known in animals, gives seed fuzz its intense orange.
By Susan Milius -
LifeAnti-aging: A little stress may keep cells youthful
The aging-related Sirtuin 1 protein also regulates heat shock response, a mechanism cells use to combat stress.
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EcosystemsMarine census: Surprising number of creatures bipolar
Census of Marine Life offers a preview of massive international census gives fuller count, shows some sea species at both poles.
By Susan Milius -
LifeJumping genes provide unexpected diversity
Mobile DNA elements have stuffed and shrunk the human genome, a comparison of two genomes reveal
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Planetary ScienceEarth may be home to unearthly life
No need to look on other planets for new forms of life — weird life could exist right here on Earth.
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LifeSponge’s secret weapon restores antibiotics’ power
A chemical from an ocean-dwelling sponge can reprogram antibiotic resistant bacteria to make them vulnerable to medicines again, new evidence suggests.
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HumansAAAS: March of the Hungry Penguins
Patagonian penguins have become sentinels of climate change and human impacts on the marine world.
By Janet Raloff -
HumansAAAS: Darwin is the 1000th Steve
The amusing list of living scientists supporting evolution was topped, this evening, by a man named Darwin.
By Janet Raloff -
AgricultureAAAS: Stress Can Make Plants More Nutritious
People who aren't veggie lovers might want to seek out types of produce that deliver an especially big nutrient bang for the gram.
By Janet Raloff -
LifeMitochondria Gone Bad
Problems in the cell’s energy factories power new ideas on disease and aging.
By Laura Beil