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Controversial Fossil Hints Homo sapiens Blazed a Trail Out of Africa Earlier Than Thought

vendredi 26 janvier 2018 par Kate Wong — The Sciences, Evolution

The jaw fragment suggests our species began traveling abroad 50,000 years earlier than previously thought -- Read more on ScientificAmerican.com

Scientific American

How Brittlestars "See" without Eyes

mercredi 24 janvier 2018 par Giorgia Guglielmi, Nature magazine — The Sciences, Biology, Evolution

The starfish relatives use light-sensitive cells throughout their bodies to sense their surroundings -- Read more on ScientificAmerican.com

Scientific American

Cocktail of Brain Chemicals May Be a Key to What Makes Us Human

mercredi 24 janvier 2018 par Bret Stetka — Mind, Neuroscience, Biology, Evolution

A study that compares us with other primates finds a brain region linked to social behavior that may offer a biological explanation for why humans, not chimps, produced Shakespeare, Gandhi and... -- Read more on ScientificAmerican.com

Scientific American

Canada Geese Taking a Winter Staycation

lundi 22 janvier 2018 par Emily Schwing — Sustainability, Conservation, The Sciences, Biology, Evolution

The geese are wintering farther and farther north, in urban areas like Chicago—which may help them avoid hunters. Emily Schwing reports. -- Read more on ScientificAmerican.com

Scientific American

The Medusaceratops Mystery

samedi 20 janvier 2018 par Brian Switek — The Sciences, Evolution

Old bones raise new questions about an enigmatic horned dinosaur -- Read more on ScientificAmerican.com

Scientific American

How to Stop Sex Changes in Turtles on the Great Barrier Reef

mercredi 17 janvier 2018 par Ana Rita Patricio, The Conversation US — Sustainability, Climate, Conservation, The Sciences, Biology, Evolution

Climate change led to more female eggs, so scientists are trying to ensure males are made in the shade -- Read more on ScientificAmerican.com

Scientific American

Paleo Profile: The Bryant's Shark

dimanche 14 janvier 2018 par Brian Switek — The Sciences, Evolution

Distinctive teeth mark the discovery of a new prehistoric shark species -- Read more on ScientificAmerican.com

Scientific American

Which Came First, the Proboscis or the Flower?

samedi 13 janvier 2018 par Christopher Intagliata — The Sciences, Biology, Evolution

A new fossil find reveals that the sucking tongue of butterflies—or proboscis—appears to have evolved before the emergence of flowers. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Scientific American

The Carcass Race

vendredi 12 janvier 2018 par Corinne Kendall — The Sciences, Evolution

A surprising relationship between mammalian and avian scavengers might tell us something about how humans evolved -- Read more on ScientificAmerican.com

Scientific American

Mass Extinction in Earth's Oceans Could Begin by 2100

jeudi 11 janvier 2018 par Mark Fischetti, Jen Christiansen — Graphic Science, Sustainability, Conservation, Environment, The Sciences, Biology, Evolution