Life
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We summarize the week's scientific breakthroughs every Thursday.
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PaleontologyDinos molted for a new look
In one species, adolescents appear to have sprouted a new type of feathers as they matured.
By Sid Perkins -
EcosystemsForests on the wane
Early last decade, the world’s tree coverage dropped by more than 3 percent.
By Sid Perkins -
Health & MedicineBaby’s calcium might play defining role in adult bone health
Calcium makes bones strong. But a new animal study suggests that to do this, ample calcium may need to be available from birth. Too little in the early weeks of life may reprogram certain stem cells – those in the marrow – in ways that permanently compromise bone structure. Perhaps even fostering osteoporosis.
By Janet Raloff -
AnimalsChimps may be aware of others’ deaths
Reactions of chimps to dead companions and infants suggest a basic realization of what death entails.
By Bruce Bower -
LifeParadox of dining in deep, wet mud
A bonanza of food doesn’t necessarily result in biodiversity among deep sediment dwellers off California’s coast.
By Susan Milius -
SpaceLife in the sticky lane
Tropical asphalt lake could be analog for extraterrestrial microbial habitat.
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EarthEmerging Northwest fungal disease develops virulent Oregon strain
Uncommon but sometimes fatal infections of the lung or brain can show up months after someone inhales spores.
By Susan Milius -
AnimalsMale spiders have safe(r) sex with siblings
In a cannibalistic species, brothers minimize risk when mating with their sisters.
By Susan Milius -
LifeBATTLE trial personalizes lung cancer treatment
A new study makes a first step toward personalized chemotherapy.
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LifePine pollen gets flight miles
A first-of-its-kind study logs the record to beat for germination after air travel.
By Susan Milius -
Health & MedicineEmbryo transfer technique could prevent maternally inherited diseases
A new technique transplants healthy nuclear DNA of cells carrying mutated mitochondria.
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LifeMutation effects often depend on genetic milieu
Genetic background is at least as important as environment, fruit fly research shows.