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15 January 2018

Les papillons existaient bien plus tôt qu’on ne le pensait [Courrier Internationnal - Sciences]

Les plus anciennes traces fossiles de papillons, conservées dans des sédiments en Allemagne, montrent que ces insectes ailés virevoltaient déjà sur la planète il y a 201 millions d’années, au côté des premiers dinosaures.

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15 January 2018

Expérimentation animale, peut-on s’en passer ? [The Conversation]

Le débat est récurrent, et parfois très violent : le recours aux modèles animaux en recherche biologique et médicale soulève de nombreux questionnements de la société. De même, les acteurs de cette recherche s’interrogent. S’il existe d’autres méthodes dites alternatives, pourquoi avoir encore recours aux modèles animaux ?

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19 December 2017

Scientists discover gut bacteria in bees spread antibiotic-resistant genes to each other [Phys]

"To our surprise, we found that instead of one gut bacterium acquiring resistance and outcompeting all the other gut bacteria in honey bees, the resistance genes spread in the bacterial community so that all strains of bacteria survived," said Gro Amdam, a professor with ASU School of Life Sciences and co-author of the paper.

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19 December 2017

How fungi helped create life as we know it [Phys]

Today our world is visually dominated by animals and plants, but this world would not have been possible without fungi, say University of Leeds scientists.

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18 December 2017

New study shows how birds work to sing together [Phys]

A new paper published in Behavioral Ecology finds that songbirds may coordinate both vocally and visually to enhance their singing partners’ responses.

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