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28 novembre 2016

The sparrow with four sexes [Nature - News Feature]

Elaina Tuttle spent her life trying to understand the bizarre chromosome evolution of a common bird — until tragedy struck.

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25 novembre 2016

From sea to summit : plant colonisation of the land [New Phyt Blog]

When plants moved from water onto land, everything changed. Nutrients were scavenged from rocks to form the earliest soils, atmospheric oxygen levels rose dramatically, and plants provided the food that enticed other organisms to expand across the terrestrial world.

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25 novembre 2016

Beavers given native species status after reintroduction to Scotland [The Guardian]

Large populations of wild beavers living in the southern and western Highlands of Scotland are to be allowed to expand naturally after ministers granted them protected status.

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25 novembre 2016

A ‘sapphire rush’ has sent at least 45,000 miners into Madagascar’s protected rainforests [The Conversation]

The rainforests of Didy in eastern Madagascar usually ring with the calls of the indri, the island’s largest lemur. There is a different noise now : the chopping of trees, digging of gravel, and cheers of encouragement from the thousands of illegal miners who have flooded to these forests since sapphires were discovered in late September.

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25 novembre 2016

Le service rendu par les pollinisateurs évalué entre 2 et 5 milliards d’euros par an en France [Le Monde - Planète]

Si le degré de dépendance varie d’une culture à une autre, il existe pour 72 % des espèces cultivées pour l’alimentation humaine en France.

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