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Sélection scientifique de la semaine (numéro 196)

– Pour la première fois, un animal génétiquement modifié – le saumon OGM de la société américaine AquaBounty Technologies, dont j'avais parlé ici en 2013 – est autorisé pour la consommation humaine. (en anglais) – A quelques jours de l'ouverture … Continuer la lecture (...)

Hobbits Were a Separate Species, Ancient Chompers Show

jeudi 19 novembre 2015 — The Sciences, Biology, Evolution, Evolutionary Biology
Teeth from these diminutive individuals suggest they belonged to a unique species rather than a modern human with a growth disorder, as previously suspected -- Read more on ScientificAmerican.com

Hobbits Were a Separate Species, Ancient Chompers Show

jeudi 19 novembre 2015 — The Sciences, Biology, Evolution, Evolutionary Biology
Teeth from these diminutive individuals suggest they belonged to a unique species rather than a modern human with a growth disorder, as previously suspected -- Read more on ScientificAmerican.com

Ears: Do Their Design, Size and Shape Matter?

An “eary” project from Science Buddies -- Read more on ScientificAmerican.com

Female Vocalists Are in the (Mouse) House

Careful recordings of mouse interactions find that females vocalize, overturning the long-held view that only males sing during courtship -- Read more on ScientificAmerican.com

"Supergene" Determines Wading Birds' Sex Strategy

mardi 17 novembre 2015 — The Sciences, Biology, Evolution
Male ruffs look and behave differently around females, depending on their version of a 125-gene stretch of DNA -- Read more on ScientificAmerican.com

Mysterious Group of Extinct Humans Was More Diverse Than Neandertals

DNA from Denisovans suggests they lived in Siberia for millennia and were more genetically diverse than Neandertals, but less diverse than modern humans -- Read more on ScientificAmerican.com

Why Cats Taste No Sweets

An old gene mutation is at fault -- Read more on ScientificAmerican.com

Did Dark Matter Kill the Dinosaurs? A Q&A with Author Lisa Randall

dimanche 15 novembre 2015 — Web Exclusives, The Sciences, Evolution, Dinosaurs, Physics, Space
In her new book Randall probes the connections between seemingly unrelated phenomena in our universe -- Read more on ScientificAmerican.com

The Greatest Vanishing Act in Prehistoric America

samedi 14 novembre 2015 — The Sciences, Evolution, Archaeology & Paleontology
Seven centuries ago, tens of thousands of people fled their homes in the American Southwest. Archaeologists are trying to work out why -- Read more on ScientificAmerican.com

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