Life
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We summarize the week's scientific breakthroughs every Thursday.
- Health & Medicine
Genetic defect tied to autoimmune diseases
Rare mutations in an enzyme lead to several different disorders.
- Science & Society
Citation inflation
Many journals – and the authors who publish their novel data and analyses in them – rely on “impact factors” as a gauge of the importance and prestige of their work. However, a new analysis turns up subtle ways that journals can game the system to artificially inflate their impact factor.
By Janet Raloff - Life
Forget mice, elephants intimidated by ants
Swarms of little nuisances have an outsized effect on who nibbles which trees in the African savanna.
By Susan Milius - Health & Medicine
H1N1 virus lacks Spanish flu’s killer protein
Researchers uncover a deadly secret of Spanish flu.
- Humans
First Mexican-American and African-American genomes completed
Studies hint that genetic diversity among Native Americans may rival that seen in some African populations.
- Earth
Ancient marine reptiles losing their cool
Warm-bloodedness may help explain the creatures’ evolutionary success, a new study suggests.
By Sid Perkins - Ecosystems
Parasite brood gets help from nearby microbes
A critical interaction between whipworm and E. coli suggests a new way to battle the common gut infection.
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- Life
Missing chemicals on Titan could signal life
Methane-based organisms on one of Saturn’s moons might be consuming the materials.
By Ron Cowen - Earth
Possible snake shortage looms
Declines among species in Europe and Africa raise herpetologists’ worries of widespread population losses.
By Susan Milius - Climate
With warming, some commercial fish may boom and bust
Higher temps in Arctic waters might be good for some species but not for others, new research suggests.
By Sid Perkins - Life
Marine creature cooks up chemical defense from food
The sea hare transforms a benign algal pigment into a noxious molecule to help ward off crabs and other predators, new studies show.