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16 mars 2017

U.S. Salamanders Threatened by Deadly Fungus [Scientific American]

The pathogen with a near 100 percent mortality rate could wipe out amphibian species already decimated by habitat loss.

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15 mars 2017

L’ensemble des araignées consomme 400 millions de tonnes de proies par an [Sciences et Avenir - Animaux]

Selon des chercheurs européens, les araignées dévorent plusieurs centaines de millions de tonnes de proies par an.

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15 mars 2017

Plants have evolved a taste for sand that deters hungry insects [New Scientist]

Getting sand in your mouth is an unpleasant experience – and plants seem to know it. Emerging evidence suggests that some plants cultivate a sandy taste to deter herbivores from eating them.

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15 mars 2017

‘Chemist’ ants brew antibiotic cocktail to protect their colony [Science]

Ants have all sorts of jobs we normally think of as human, from architect to farmer to insect-in-chief. Now, scientists are adding one more occupation to that list : chemist. A new study shows that wood ants protect their colonies from disease by crafting a potent antibiotic “cocktail” made of tree resin and poison from their own bodies. The finding, one of the most sophisticated examples of animal pharmacology, could explain how some ants evade epidemics.

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14 mars 2017

Découverte à Bornéo de deux espèces d’oiseaux encore inconnues [Ornithomedia]

Un zostérops et un gobemouche du genre Cyornis, a priori non encore décrits, ont été observés en juillet 2016 dans les monts Meratus.

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