Drastic Measures: 8 Wild Ways to Combat Invasive Species Employing everything from love potion to meat-eating ants, scientists try to stem the influx of new invasive species with some "creative" ideas By Cassandra Willyard http://www.scientificameric...
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Comme les grands poissons prédateurs et les mammifères marins d'aujourd'hui, les reptiles marins qui occupaient leurs niches écologiques il y a entre 205 et 65 millions d'années produisaient leur propre chaleur corporelle. François Savatier Bien avant...
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On pensait que la plus importante phase de diversification de la vie océanique, il y a quelques 460 millions d'années, s'était déclenchée alors que la plupart des niches écologiques marines étaient vides. Un site de fossiles marocain remet en cause cette...
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Questions à Thuy Le Toan, responsable du groupe « Biomass » du Centre d’études spatiales de la biosphère de Toulouse. Selon une étude américaine, le couvert forestier mondial aurait diminué de 101 millions d’hectares entre 2000 et 2005, soit une baisse...
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Sequencing Napoleon's nemesis Body-louse genome offers a glimpse into the genetic legacy of life as a permanent parasite. Heidi Ledford Body lice have played a key role in human history.James Gathany / CDC They are our some of our nearest, but not dearest,...
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La découverte de nombreux fossiles, parfaitement conservés, d'un spécimen rarissime – Nectocaris pteryx – permet d'actualiser la date d'apparition des premiers céphalopodes sur Terre. Émilie Auvrouin Les schistes de Burgess, un gisement de fossiles situé...
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River deltas hint at ancient Martian ocean Similar heights of channel mouths suggest they fed into one body of water. Jon Cartwright A huge ocean may have covered almost one-third of the Martian surface.B.Hynek/University of Colorado Planetary geologists...
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Rare genetic variants linked to autism - June 09, 2010 The search for the genetic underpinnings of autism spectrum disorder has just yielded a new set of clues. In the largest study to date, the Autism Genome Projectconsortium reports that people with...
Lire la suiteDon't waste lab animals 10 June 2010 by Simon Festing Magazine issue 2763. Subscribe and save For similar stories, visit the Comment and Analysis Topic Guide THOSE of us who support the careful and well-regulated use of animals for scientific and medical...
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Large-Scale Autism Study Reveals Disorder's Genetic Complexity Although unique genetic variations in children with autism are nearly as rare as they are in the general population, comprehensive studies are starting to find patterns in disrupted genes...
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