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Articles les plus récents

Your Immune System Is Made, Not Born

jeudi 29 janvier 2015 — More Science, Biology, Evolution, Health, Infectious Diseases
New research dispels the belief that the strength of the body’s defense system is genetically programmed -- Read more on ScientificAmerican.com

U.S. Forest Service to Designate Routes for Snowmobiles on Public Lands

The rule requires managers of the nation’s nearly 200 forests and grasslands to formally designate where snowmobiles can be operated on the 193 million acres of public land the agency oversees -- Read more on ScientificAmerican.com

Climate Influences Language Evolution

The ease with which certain sounds are produced in different climes plays a role in the development of spoken languages. Christopher Intagliata reports -- Read more on ScientificAmerican.com

Record Sea Lion Pup Strandings Reported

Experts worry that this winter may be the worst season ever documented for the marine mammals -- Read more on ScientificAmerican.com

Long-Term Sperm: Shark Gives Birth 4 Years after Contact with Male

mercredi 28 janvier 2015 — More Science, Biology, Evolution
The brownbanded bamboo shark’s belated delivery almost doubles the previous record for sperm storage -- Read more on ScientificAmerican.com

Remarkable Fossils Push Back Snake Origins by 65 Million Years

mardi 27 janvier 2015 — Evolution, Evolutionary Biology
The four oldest-known snake fossils were announced Tuesday, the most ancient of which was a roughly 25-cm-long reptile unearthed in a quarry near Oxford, England, that lived about 167 million years... -- Read more on ScientificAmerican.com

High-Altitude Forests in the Himalayas Harder Hit by Droughts

mardi 27 janvier 2015 — Energy & Sustainability, Climate, Ecology, Evolution
Why are plateau and mountain timberlines in Asia shifting downslope, despite global warming? -- Read more on ScientificAmerican.com

Virtual Dissection Method Could Reinvigorate Zoology

Last summer, researchers demonstrated that non-invasive imaging combined with a staining technique enables the fast comparison and study of earthworm species and other animals in unprecedented detail. -- Read more on ScientificAmerican.com

Snail's Venom Puts Fish in Insulin Coma

The cone snail's venom contains not only neurotoxins, but insulin, too—which stuns the fish it preys on. Christopher Intagliata reports -- Read more on ScientificAmerican.com

Pitcher Plant Captures Prey in Batches

lundi 26 janvier 2015 — More Science, Evolution, Evolutionary Biology
A design flaw in the carnivorous plant could be its greatest asset -- Read more on ScientificAmerican.com

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