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27 janvier 2017

Les gènes du goût des tomates décryptés [Sciences et Avenir - Nature & environnement]

Une équipe internationale a identifié les gènes impliqués dans la saveur de la tomate. Demain, une super tomate goûteuse pourrait voir le jour.

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27 janvier 2017

High-tech maps of tropical forest diversity identify new conservation targets [Phys]

New remote sensing maps of the forest canopy in Peru test the strength of current forest protections and identify new regions for conservation effort, according to a report led by Carnegie’s Greg Asner published in Science.

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26 janvier 2017

Why did humans evolve big penises but small testicles ? [The Conversation]

Humans have a much longer and wider penis than the other great apes. Even the largest of gorillas, more than twice as heavy as a human, will have a penis just two and half inches long when erect.
However our testicles are rather small. A chimpanzee’s testes weigh more than a third of its brain while ours weigh in at less than 3%. The relative size of our penis and testes is all down to our mating strategies, and can provide some surprising insights into early human culture.

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26 janvier 2017

New hermit crab has candy-stick legs and a giant spoon-like claw [New Scientist]

How about a little eye candy ? A new species of hermit crab, discovered in the Caribbean, is just the ticket.
It’s called the candy striped hermit crab, named for the bright red stripes that run up its white claws and legs.

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26 janvier 2017

10 amazing birds that have gone extinct [Birdlife International]

BirdLife is proud to announce that Volume 2 of the Illustrated Checklist of the Birds of the World is now available to purchase. Published by Lynx Edicions in association with HBW and BirdLife International, Volume 2 chronicles the world’s passerines (perching birds), and completes the most exhaustive illustrated checklist of birds ever compiled, with stunning, full-colour portraits of all the world’s 10,965 extant species.
In addition, this comprehensive set also features portraits of every bird species to have gone extinct since the year 1500, that we have reliable visual records of. Below are just some of the hundreds of species of bird that have been wiped out by human activity in the modern era.

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