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18 mai 2017

Beaver dams keeps streams cool and protect sensitive fish [New Scientist]

Dam, what a find ! Beaver dams could lower maximum water temperatures in streams – keeping temperature-sensitive fish safe from dangerous highs.

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18 mai 2017

Trees in eastern US head west as climate changes [Nature - News]

Breaking from the general poleward movement of many species, flowering trees take an unexpected turn.

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18 mai 2017

1 730 nouvelles plantes découvertes en 2016 [Le Monde - Biodiversité]

L’organisation scientifique Les Jardins botaniques royaux de Kew dresse un nouvel inventaire de la flore mondiale. De possibles aliments du futur y figurent.

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17 mai 2017

When the Lab Rat Is a Snake [The New York Times]

Why Burmese pythons may be the best way to study diabetes, heart disease and the protective effects of gastric-bypass surgery in humans.

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17 mai 2017

Gladiator games : In the natural world, biodiversity can offer protection to weaker species [ScienMag]

If you pit a pair of gladiators, one strong and one weak, against each other 10 times the outcome will likely be the same every time : the stronger competitor will defeat the weak. But if you add into the field additional competitors of varying strength levels, even the weakest competitors might be able to survive — if only because they’re able to find a quiet corner to hide.
The same is true in the natural world, where in some ecosystems species compete with others for the space to survive and reproduce, according to a long-held scientific theory.

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