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30 juin 2017

Deux études à grande échelle confirment les dégâts des néonicotinoïdes sur les abeilles [Le Monde - Planète]

Ces insecticides extrêmement puissants diminuent la fertilité des colonies, augmentent la mortalité et contaminent l’environnement.

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29 juin 2017

Variation at a central metabolic gene influences male fruit fly lifespan [Phys]

The overexpression of an important gene that regulates energy metabolism can cause a severe shortening of lifespan in male fruit flies but has only a small negative effect on lifespans of female fruit flies, according to new research from North Carolina State University. The findings, which involve metabolic genes and pathways that are important in humans and other animals, shed more light on sex-specific differences between male and female lifespans.

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29 juin 2017

Darwin’s ’strangest animal ever’ finds a family [Phys]

Charles Darwin, Mr. Evolution himself, didn’t know what to make of the fossils he saw in Patagonia so he sent them to his friend, the renowned paleontologist Richard Owen.
Owen was stumped too. Little wonder.
"The bones looked different from anything he knew," said Michael Hofreiter, senior author of a study published Tuesday in Nature Communications that finally situates in the tree of life what Darwin called the "strangest animal ever discovered".

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29 juin 2017

« Une aire marine en Antarctique permettrait de protéger les ressources alimentaires de plus de 75 000 couples de manchots Adélie » [Le Monde - Planète]

Dans une tribune au « Monde », Yan Ropert-Coudert, directeur de recherche au CNRS, appelle à la création d’un nouveau refuge pour les espèces marines.

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29 juin 2017

Flying ant day : when virgin queens and male drones mate on the wing [The Guardian]

After warm weather and summer rain, flying ants emerge from nests for a mass mating event to ensure survival and dispersal of the species.

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