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Home > Communication > Scientific newsletter > Press articles > Science

Science Science feed

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4 September 2017

We may finally understand why tropical plants have huge leaves [New Scientist]

To solve this puzzle, Ian Wright at Macquarie University in Sydney and his colleagues studied the leaves of 7670 plant species found at different latitudes. The team looked at the relationship between leaf size and various aspects of climate, including day and night temperatures, rainfall and humidity.

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1 September 2017

Evolution : comment les champignons sont-ils devenus hallucinogènes ? [Sciences & Avenir - Evolution]

La première étude jamais réalisée sur le génome de ces champignons aux effets psychédéliques montre que ces propriétés pourraient avoir été sélectionnées comme arme contre les insectes.

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1 September 2017

Honeybees become workers or queens depending on the plant microRNAs in their diet [Phys]

Bee larvae develop into workers, in part, because their diet of pollen and honey, called beebread, is rich in plant regulatory molecules called microRNAs, which delay development and keep their ovaries inactive. Xi Chen of Nanjing University in China and colleagues, report these August 31, 2017 in PLOS Genetics.

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31 August 2017

A new estimate of biodiversity on Earth [Phys]

In a new paper published in The Quarterly Review of Biology (September 2017), researchers from the University of Arizona have estimated that there are roughly 2 billion living species on Earth, over a thousand times more than the current number of described species.

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30 August 2017

Rise of male individuals in stingless bees colonies leads to queen’s death [Phys]

Queens of stingless bee species (Meliponini) face a reproductive dilemma. If they mate with males with which they turn out to share the same sex determination gene, half of their offspring will consist of males, and the colony’s workforce will fall by half, given that effectively only the females are workers.

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