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3 février 2017

Fish found to communicate with one another using urine [Phys]

A trio of researchers with the University of Bern in Switzerland has found that at least one species of fish communicates with others of its kind using chemicals in its urine. In their paper published in the journal Behavioral Ecology and Sociobiology, the team outlines experiments they conducted with a cichlid fish and what they discovered.

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3 février 2017

This parasitic plant steals more than nutrients from its hosts [The Scientist]

The parasitic plant Lophophytum mirabile grows in the Amazon forest, sucking its nutrients (and some mitochondrial DNA) from the roots of other plants.

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2 février 2017

Les araignées bariolées voient les couleurs [Sciences et Avenir - Animaux]

Selon une étude présentée en janvier 2017, les araignées du genre Habronattus et Maratus sont sensibles a bien plus de couleurs que ce que pensaient précédemment les chercheurs.

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2 février 2017

Plant keeps moths captive inside its fruits for almost a year [New Scientist]

Zoologger is our weekly column highlighting extraordinary animals – and occasionally other organisms – from around the world.

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2 février 2017

The seeds of speciation [The Molecular Ecologist]

You don’t have to get very far into an evolution textbook before you bump into Darwin’s finches, the birds descended from South American finches that colonized the Galapagos Islands and “radiated” into an array of different species, each with a beak adapted to different food sources across the archipelago. Another, equally interesting case of avian adaptation is found in North America, on a different sort of archipelago. It’s found in patches of lodgepole pine forest that cloak the slopes and foothills of the Rocky Mountains, in the hooked beaks of red crossbills.

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