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4 octobre 2017

Les pigeons sont plus multitâches que les humains [Sciences & Avenir - Animaux]

Des chercheurs européens ont mis en évidence la capacité qu’ont les pigeons à réaliser plusieurs tâches à la fois.

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3 octobre 2017

This Caterpillar Mimics Bird Alarm Calls to Scare Away Predators [Audubon]

When attacked, the North American walnut sphinx lets out a full-body scream that can reach up to 80 decibels in volume.

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3 octobre 2017

Tropical diversity takes root in relationships between fungi and seeds [Phys]

A team led by Smithsonian scientists in Panama exposed a key to understanding tropical tree diversity by studying how fungi interact with seeds that linger in the ground. Despite a smorgasbord of species available to choose from, tropical fungi and seeds are picky about associating with one another. Early pairings with a particular fungus may influence whether a seed survives and also may help explain how tropical forests remain so diverse.

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3 octobre 2017

Parakeet Invasion of Mexico Driven by Europe’s Ban on Bird Imports [Nature - News]

Attempts to stop the spread of bird flu and protect wildlife had unintended consequences.

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3 octobre 2017

Toad Tadpoles Turn Homegrown Poisons on One Another [Scientific American]

Young amphibians are the first animals thought to use toxins against rivals of their own species.

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