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16 mai 2017

Soil Microbes May Be Orchestrating Tree Migrations [Scientific American]

Microscopic soil creatures may determine how quickly tree species march toward cooler conditions.

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16 mai 2017

Frisky female fruit flies become more aggressive towards each other after sex [Phys]

Female fruit flies start headbutting each other after mating, becoming significantly more aggressive and intolerant Oxford University research has revealed.

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16 mai 2017

La France va-t-elle sauver ses hérissons ? [Le Monde - Blogs]

Il est à la fois le garant de la bonne santé des campagnes, un précieux auxiliaire des jardiniers et un emblème de la biodiversité. Cet animal des plus communs et pourtant de plus en plus menacé, c’est le hérisson.

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15 mai 2017

Polar bears shift from seals to bird eggs as Arctic ice melts [New Scientist]

Polar bears are ditching seafood in favour of scrambled eggs, as the heat rises in the Arctic melting the sea ice. A changing coastline has made it harder for the predators to catch the seals they favour and is pushing them towards poaching goose eggs.

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15 mai 2017

Fruit fly study measures genetic variation in learning [Phys]

You live, you learn—even if you’re a larva and especially if there’s a little shock involved.
That doesn’t sound particularly nurturing, but the jolt was important to a Rice University scientist and her team who studied common fruit fly larvae. Their strategy helped them conclude that nature and nurture do collaborate in determining the behavior of a population.

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