Par séquençage de l'ADN des poils de 13 mammouths laineux de Sibérie, une équipe de chercheurs internationale a montré qu'il était possible d'étudier le génome de nombreux autres animaux représentés dans les collections des muséums, même vieux de plusieurs...
Lire la suiteComment les insectes se nourrissant de sang (moustiques, punaises, poux, ...) arrivent-ils à localiser les vaisseaux sanguins sous la peau ? Des chercheurs du CNRS, de l'université François Rabelais de Tours et d'institutions brésiliennes viennent de...
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Tasmanian Devils face extinction - October 04, 2007 They may not be as cute as koala, as iconic as kangaroos, or as just-plain-weird as the platypus but Australia would still be a poorer place without the Tasmanian Devil. Sadly the devil is headed for...
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A duck-billed plant pulveriser - October 04, 2007 A "monster" dinosaur has been unveiled by Utah scientists. However, although its duck bill contained 300 teeth ready to chew and another 500 in reserve, Gryposaurus monumentensis was a confirmed herbivore...
Lire la suitehttp://www.esa.int/esaCP/SEM7A87H07F_Expanding_0.html The gigantic nebula NGC 3603 hosts one of the most prominent, massive, young clusters in the Milky Way. Hubble has been observing this prime location for star formation studies. NGC 3603 is located...
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This Hubble image shows the gigantic nebula NGC 3603 located in the Carina spiral arm of the Milky Way, about 20 000 light-years from the Solar System.NGC 3603 hosts one of the most prominent, massive, young clusters in the Milky Way. Hubble has been...
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4 October 2007 | Nature | doi:10.1038/news.2007.146 Telomeres: more than just protectors Unexpected role found for DNA caps on chromosomes. Heidi Ledford Telomeres, the stretches of repetitive DNA that cap chromosome ends, have long been thought to be...
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