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21 septembre 2017

Tool-wielding monkeys push local shellfish to edge of extinction [New Scientist]

HUMANS aren’t the only primate to have pushed their prey towards extinction. Monkeys have also over-exploited animals for food.

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21 septembre 2017

Queens under pressure - do pesticides provide additional challenges for bumblebees starting a colony ? [Nature Ecology & Evolution - Behind the paper]

The determined buzzing of queen bumblebees after a long winter is a timely reminder that spring is on its way. They industriously search for pollen and nectar to refuel after a lengthy hibernation, and find nesting sites to start their new colony. The survival and health of these queens is essential to the bumblebee life-cycle.

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20 septembre 2017

Barn owls found to suffer no hearing loss as they age [Phys]

A small team of researchers with the University of Oldenburg has found that barn owls do not suffer hearing loss as they get older. In their paper published in Proceedings of the Royal Society B, the group describes hearing tests they conducted with a group of trained owls, what they found and why they believe more study of the birds may lead to preventing hearing loss in aging humans.

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20 septembre 2017

Quand les écosystèmes saturent [CNRS Le Journal]

La prolifération des algues vertes sur certaines plages bretonnes témoigne d’un phénomène de pollution en pleine recrudescence sur la planète : l’eutrophisation. Une expertise scientifique est publiée aujourd’hui pour faire la lumière sur les origines et les conséquences de ce syndrome d’indigestion des milieux naturels.

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19 septembre 2017

Secrets of butterfly wing patterns revealed by gene hacking [New Scientist]

Butterfly wings have been given make-overs by scientists who tweaked a “painting gene” to change their patterns and colours.
The research has major implications for understanding how the so-called “rules of life” – genetics and evolution – shape biodiversity.

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