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22 mars 2018

Promiscuity may have accelerated animal domestication [Phys]

Domestication of wild animals may have accelerated as promiscuity increased among the high density populations drawn to life near humans, according to a new paper by University of Liverpool researchers.

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22 mars 2018

Biorxiv.org révolutionne la diffusion des travaux de recherche [Le Monde - Sciences]

Ce site, qui permet le dépôt des versions préliminaires de publications soumises aux revues, séduit de plus en plus les biologistes.

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20 mars 2018

Termite queen, king recognition pheromone identified [Phys]

A study published in Proceedings of the National Academy of Sciences shows that a wax-like hydrocarbon—a chemical consisting of only carbon and hydrogen atoms called heneicosane—on the body surface of subterranean royal termites is used to enable worker termites to recognize and care for them. Termites live mostly underground or in wood and are generally blind, necessitating the use of chemical signals to communicate.

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20 mars 2018

Le génome du solénodon, un rongeur venimeux, a été séquencé [Sciences & Avenir - Animaux]

Des chercheurs ont séquencé le génome d’un rongeur venimeux apparu au temps des dinosaures et méconnu, le solénodon.

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20 mars 2018

Genetic analysis uncovers the evolutionary origin of vertebrate limbs [Phys]

The study, published this week in Nature Genetics, demonstrates that fish, mice and likely all modern-day vertebrates share genetic elements first used to develop the unpaired dorsal fin in ancient fish. They later copied these elements to produce paired appendages, like pelvic and pectoral fins, arms and legs.

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