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14 mai 2018

Le besoin de nature à l’ère digitale, entre science et philosophie [The Conversation]

Alors que plus de la moitié de la population mondiale vit à présent en ville, dans des environnements où la technologie numérique prédomine, la relation de l’homme à la nature dans les sociétés post-industrielles est au mieux compliquée, au pire inexistante.

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14 mai 2018

Brood parasitism in fish [Phys]

Professor Axel Meyer, an evolutionary biologist from the University of Konstanz, and a team of researchers from the Institute of Vertebrate Biology in Brno (Czech Republic) have carried out research into the evolutionary strategies employed by cuckoo catfish and various types of cichlids that occur in Lake Tanganyika and several other African lakes. Their study paints a fascinating picture of evolutionarily shaped and individually learned defence behaviour, as well as the deception efforts employed by both species of fish—and the high price that cichlids pay for keeping the illegitimate offspring of the cuckoo catfish away from their own eggs.

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14 mai 2018

Le tourisme fait s’envoler le réchauffement planétaire [Le monde - Climat]

8 % des émissions mondiales de gaz à effet de serre sont dus au tourisme, selon une étude prenant en compte transport, alimentation, hébergement et achats des voyageurs.

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14 mai 2018

Animals bred in captivity found to undergo internal physical changes [Phys]

A team of researchers from the University of Wollongong and the University of New South Wales has found that some wild animals undergo internal physical changes when bred in captivity. In their paper published in the journal Royal Society Open Science, the group describes experiments they conducted on captive mice and what they found.

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9 mai 2018

Global warming is melting Antarctic ice from below [The Guardian]

Warming oceans melting Antarctic ice shelves could accelerate sea level rise.

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