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22 novembre 2017

Refining pesticides to kill pests, not bees [Phys]

Pyrethroid pesticides are effective. Sometimes too effective.
Researchers at Michigan State University’s entomology department have unlocked a key to maintain the insecticide’s effectiveness in eliminating pests without killing beneficial bugs, such as bees. The study, featured in the current issue of Proceedings of the National Academy of Sciences, shows that molecular tweaks can make the difference.

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21 novembre 2017

Albatross populations in decline from fishing and environmental change [Phys]

The populations of wandering, black-browed and grey-headed albatrosses have halved over the last 35 years on sub-antarctic Bird Island according to a new study published today (20 November) in the journal Proceedings of the National Academy of Sciences.

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21 novembre 2017

Biology’s Beloved Amphibian—the Axolotl—Is Racing Toward Extinction [Scientific American]

Although abundant in captivity, the salamander has nearly disappeared from its natural habitat—and that is a problem.

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21 novembre 2017

Une nouvelle menace plane sur les insectes pollinisateurs [Sciences & Avenir - Animaux]

Des chercheurs américains ont mis en évidence le rôle d’un fongicide dans le déclin des bourdons.

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21 novembre 2017

Meet the Spiders That Completely Defy What We Know as Jet Lag [Scientific American]

A serendipitous discovery turns up creatures able to reset instantly their biological clocks by six hours, a feat unmatched in the animal world.

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