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25 novembre 2015

Researchers are inducing a drought in an Australian rainforest to study its effects [Mongabay]

Researchers from James Cook University used 3,000 clear plastic panels to create what they call a “raincoat for a rainforest,” artificially inducing a drought in several thousand square meters of the Daintree Rainforest on the northeast coast of Queensland.

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25 novembre 2015

World’s 25 most endangered primates revealed [IUCN]

The latest edition of ‘Primates in Peril : The world’s 25 most endangered primates’ has been revealed today. Compiled by the Primate Specialist Group of IUCN’s Species Survival Commission (SSC), Bristol Zoological Society, the International Primatological Society (IPS), and Conservation International (CI), new additions to the list include Philippine tarsier (Tarsius syrichta) and Lavasoa Mountains dwarf lemur (Cheirogaleus lavasoensis), both of which are threatened by habitat loss.

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25 novembre 2015

Is the 2 °C world a fantasy ? [Nature]

Countries have pledged to limit global warming to 2 °C, and climate models say that is still possible. But only with heroic — and unlikely — efforts.

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24 novembre 2015

Conifer ancestors had a double dose of DNA [ScienceNews]

Ancient ancestors of today’s pine, cypress and yew trees had extra copies of their entire genome — the set of genetic instructions for an organism, researchers report November 20 in Science Advances.

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24 novembre 2015

Le pigeon s’oriente grâce aux protéines « boussole » de son œil [Futura-sciences]

De minuscules protéines « boussole » ont été trouvées chez le pigeon mais aussi la drosophile et... l’Homme. Ces molécules présentes dans des cellules de la rétine de l’oiseau forment des complexes qui s’orientent selon le champ magnétique terrestre, permettant à l’animal de se repérer.

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