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6 juin 2018

Bright warning colors on poison dart frogs also act as camouflage [Phys]

The Dyeing Dart Frog, for example, is highly toxic and warns its predators with a bright yellow-and-black pattern.
However, new research led by scientists at the University of Bristol has revealed that the colour pattern does more than simply signal "danger". Counterintuitively, it also works as camouflage.

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6 juin 2018

La forêt française et ses sols pour limiter les gaz à effet de serre [The Conversation]

Un puits de carbone artificiel a été installé en mai dernier à Poissy dans les Yvelines, afin d’aspirer les particules polluantes. Ce dispositif imite le mécanisme naturel des forêts en attirant le CO2 par photosynthèse grâce à des micro-algues.
Mais les forêts restent malgré tout le 2e puits de carbone de la planète, derrière les océans. Qu’en est-il des bois français ?

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6 juin 2018

On the origins of agriculture, researchers uncover new clues [Phys]

The invention of agriculture changed humans and the environment forever, and over several thousand years, the practice originated independently in a least a dozen different places. But why did agriculture begin in those places, at those particular times in human history ?

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6 juin 2018

Guppies change their eye color to deter rivals [Phys]

A study led by the University of Exeter, in collaboration with the University of the West Indies, found that when facing a rival, guppies rapidly turn their irises from silver to black before attacking their adversary.

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4 juin 2018

New study corroborates role of wildlife in regulating the world’s plants [Phys]

Everyone knows that plants are eaten by animals, but how important is this basic process in structuring plant communities ? In a study published this week in the Proceedings of the National Academy of Sciences, ASE Research Fellow Dr. Matthew Scott Luskin and co-authors, use data from across the world to investigate the impacts of plant-eating animals, known as herbivores, on land ecosystems.

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