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21 octobre 2016

Conserving Madagascar’s forest of hope [Birdlife]

Developing the confidence of local communities and a BirdLife Partner to work together to protect their environment has brought encouraging changes for nature and people.

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21 octobre 2016

Hundreds of endangered wild snow leopards are killed each year [New Scientist]

As many as 450 endangered snow leopards have been killed each year since 2008, a report on the fate of the mountain cats estimates.

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21 octobre 2016

Tiny DNA tweaks made snakes legless [Science]

Sometimes, a genetic tweak can make a really big difference in an animal’s appearance. That’s what likely happened when the predecessors of modern snakes lost their legs, a process that started some 150 million years ago, two separate groups of scientists have discovered. Although the teams took very different approaches to solve the mystery of how those limbs vanished, both came up with similar results : Mutations in DNA located near a gene key to limb formation keep that gene from ever turning on, they report today.

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20 octobre 2016

Amazonian frog has its own ant repellent [Phys]

Special chemicals covering the skin of a tiny yellow-striped Amazonian frog provide a protective shield that wards off leaf-cutting ants allowing it to live comfortably among them. "It helps the frog blend in, because it imitates the ants own chemical signals," says André Barros of the National Institute of Amazonian Research in Brazil. He led a study in Springer’s journal Behavioral Ecology and Sociobiology. The ants do not give it even a single bite, but will quite aggressively attack all other types of frogs or other animals that cross their path.

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20 octobre 2016

Une baie invasive influe sur la pigmentation des pics flamboyants [Sciences et Avenir - Animaux]

La baie de chèvrefeuille asiatique serait à l’origine de la coloration saisonnière des pics flamboyants.

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