Découverte au Maroc d'une tortue marine géante dans les dépôts phosphatés de la fin du Crétacé (67 millions d'années)

Par trichard

Paris, 08 Août 2013 http://www2.cnrs.fr/presse/communique/3195.htm Illustration d'un mode de nutrition par aspiration unique chez les Tétrapodes Les recherches d'un groupe de scientifiques français, marocains et belges, publiées en juillet viennent de...

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Des grenouilles qui entendent avec leur bouche

Par trichard

Paris, 2 septembre 2013 http://www.cnrs.fr/ La grenouille de Gardiner des îles Seychelles, l'une des plus petites grenouilles au monde, est dépourvue d'oreille moyenne avec tympan mais peut cependant coasser et entendre ses congénères. Ce mystère vient...

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Pirates, Charles Darwin, and One Very Un-Extinct Dodo

Par trichard

"Dodo Birds". Black and amber chalk on cream paper. By Roelandt Savery, ca. 1626. Public Domain; click for source Any animated film starring pirates, Charles Darwin, and a dodo is going to be worthy of mention here, but Aardman Animations — of Wallace...

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Infant Tooth Reveals Neandertal Breastfeeding Habits

Par trichard

http://www.scientificamerican.com/article.cfm?id=infant-tooth-reveals-neandertal-breastfeeding-habits An analysis of chemicals in primate teeth shows that a Neandertal infant nursed exclusively for a little more than 7 months By Sid Perkins and Nature...

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Heading south for the new origin of our species

Par trichard

18 April 2013 Magazine issue 2913. Subscribe and save For similar stories, visit the Editorials and Human Evolution Topic Guides WHEN 9-year-old Matthew Berger stumbled upon an odd-looking bone in 2008, he could not have anticipated the import of his...

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Letters of Alfred Russel Wallace Go Online

Par trichard

http://www.scientificamerican.com/article.cfm?id=letters-of-alfred-russel-wallace-go-online The near-complete archive allows the sometimes overlooked 19th-century naturalist to emerge from Darwin's shadow By James Poskett and Nature magazine in Share...

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Wallace: Wonders of nature have been solace of my life

Par trichard

http://www.newscientist.com/article/dn23103-wallace-wonders-of-nature-have-been-solace-of-my-life.html 00:01 24 January 2013 by Rowan Hooper For similar stories, visit the Letters and Evolution Topic Guides Alfred Russel Wallace discovered natural selection...

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To spot a fit partridge, check its fractal necklace

Par trichard

http://www.newscientist.com/article/mg21729015.300-to-spot-a-fit-partridge-check-its-fractal-necklace.html 24 January 2013 Magazine issue 2901. HOW do you spot a fit partridge? Check out the fractals round its neck. Fractal geometry is used when a pattern...

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Ancient Armored Fish Had First Bad Bite

Par trichard

By Katherine Harmon | October 17, 2012 | Sculpture of placoderm Dunkleosteus; image courtesy of Esben Horn, 10tons; supervised by Martin Rücklin, John Long and Philippe Janvier The ancient ocean was a frightening place. But the emergence of the armored...

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First life may have survived by cooperating

Par trichard

18:00 17 October 2012 by Bob Holmes For similar stories, visit the Genetics and Evolution Topic Guides It began with cooperation. When life first arose, teams of small molecules got together to perform tasks none could manage alone or so the theory goes....

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