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La sélection scientifique de la semaine (numéro 101)

Grande question : quelle est l'utilité des modèles en science et, surtout, quelle confiance peut-on leur accorder ? (en anglais) - Lancement du télescope spatial Gaia , qui cartographiera un milliard d'étoiles de la Voie lactée. - Et cette dernière (la Voie lactée) … Continuer la lecture (...)

Chameleons Talk Tough by Changing Colors

jeudi 19 décembre 2013 — Environment, Evolution, Evolutionary Biology
Evidence suggests that the lizards have evolved their dynamic color palette as a means of communication, including information about their willingness to rumble -- Read more on ScientificAmerican.com

Chameleons Talk Tough by Changing Colors

Editor's note: The following essay is reprinted with permission from The Conversation , an online publication covering the latest research. [More] -- Read more on ScientificAmerican.com

Scientific American 's Top 10 Science Stories of 2013

So many stories, so few slots. Our picks this year run the gamut from physics to biology to technology. But as a group, climate change wins in terms of having the most stories, followed by space... -- Read more on ScientificAmerican.com

I Want A Carl Buell Coffee Table Book

jeudi 19 décembre 2013 — Evolution,More Science
A while back an illustrator I consider a friend and mentor sent me an amazing birthday gift: Mammoth (C) Carl Buell, hanging in my studio space. [More] -- Read more on ScientificAmerican.com

Could an Octopus Really Be Terrorizing Oklahoma's Lakes?

jeudi 19 décembre 2013 — Evolution,More Science
Image courtesy of Wikimedia Commons/U.S. National Oceanic and Atmospheric Administration TULSA, Okla.–As the rate of unexplained drowning deaths has reportedly crept up in Oklahoma’s... -- Read more on ScientificAmerican.com

Candid Camera (Trap): The World s Rarest Big Cat

“The Amur or Far Eastern leopard, Panthera pardus orientalis, is the world’s most endangered big cat, and the only one known to be adapted to the cold, snowy environment in which it... -- Read more on ScientificAmerican.com

Parasites that Cause Chagas Disease in Humans May Also Be Killing Tiny Australian Marsupials

mercredi 18 décembre 2013 — Energy & Sustainability,More Science,Evolution
Why are the woylies all dying? Since 2001 the populations of these tiny Australian marsupials have mysteriously crashed by as much as 90 percent. The species, which had already been driven to... -- Read more on ScientificAmerican.com

Climate Change Threatens Retirement Savings

LONDON – The Asset Owners Disclosure Project asked 1,000 of the world's largest asset owners what they were doing to guard against the possibility that their investments in fossil fuels... -- Read more on ScientificAmerican.com

What Is Iceland without Ice?

SOLHEIMAJOKULL, Iceland – A fierce wind shrieks down the glacier slope, flinging ice and grit like a weather-witch from an old Icelandic saga. [More] -- Read more on ScientificAmerican.com

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