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20 mai 2017

Climate Change Is Turning Antarctica Green [Scientific American]

A new study has found a steady growth of moss in Antarctica over the last 50 years.

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19 mai 2017

The curious case of the caterpillar’s missing microbes [Nature - News]

Many animals, including humans, can’t live healthy lives without the microbes in their guts. These intestinal residents break down food and help to fight off disease-causing microorganisms. But the latest research suggests that some species, including caterpillars, can do just fine without them. It’s possible, say scientists who have studied these symbiotic bacteria, fungi and other microbes, that gut microbiomes might be less ubiquitous than previously assumed.

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19 mai 2017

Evolution in butterfly eye dependent on sex, scientists find [Science Daily]

By analyzing both the genes that control color detecting photoreceptors and the structural components of the eye itself, University of California, Irvine evolutionary biologists have discovered male and female butterflies of one particular species have the unique ability to see the world differently from each another because of sex-related evolutionary traits.

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19 mai 2017

Fish boost photosynthesis by wafting water around corals [New Scientist]

The fin fanning of damselfish in the Red Sea helps boost the rate of photosynthesis of the algae that live inside corals.

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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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