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22 June 2018

Cocaine in the water makes eels hyperactive and damages muscles [New Scientist]

Rivers and other water bodies often contain low levels of drugs, including both medicines and illegal drugs such as cocaine. These chemicals can make their way into drinking water and there is evidence that they affect wildlife.

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22 June 2018

Light pollution a reason for insect decline [Phys]

Climate change, pesticides and land use changes alone cannot fully explain the decline in insect populations in Germany. Scientists from the Leibniz-Institute of Freshwater Ecology and Inland Fisheries (IGB) have now discovered that regions that have experienced a sharp decline in flying insects also have high levels of light pollution. Many studies have suggested that artificial light at night has negative impacts on insects, and scientists should pay greater attention to this factor when exploring the causes of insect population declines in the future.

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22 June 2018

Oiseaux, chauves-souris et saumons en très fort déclin en France [Le Monde - Biodiversité]

Selon le bilan 2018 de l’Observatoire national de la biodiversité, 180 000 espèces sont en danger, notamment en raison de l’usage de pesticides et de l’artificialisation des sols.

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20 June 2018

How dragonfly larvae could inspire more effective artificial heart valves [Phys]

The way dragonfly larvae control the water jets they use to move and breathe could have a range of engineering and medical applications, according to new research.

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20 June 2018

L’épigénétique mène le génome à la baguette [CNRS Le Journal]

Identifiées chez la mouche drosophile il y a plus de 70 ans, les protéines Polycomb et Trithorax apparaissent depuis peu comme des régulateurs essentiels de l’expression de nos gènes. Retour sur les travaux récents mettant en lumière le rôle de ces complexes protéiques et les perspectives médicales que soulèvent ces découvertes.

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