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73,000-Year-Old Hashtag Is Oldest Example of Abstract Art

dimanche 16 septembre 2018 par Krystal D'Costa — The Sciences, Evolution

A silica flake from Blombos Cave contains the oldest example of prehistoric abstract art, and it looks like one of the most used symbols online -- Read more on ScientificAmerican.com

Scientific American

Genetic Tweak Gave Early Humans Leg Up

jeudi 13 septembre 2018 par Christopher Intagliata — The Sciences, Biology, Evolution

A mutation in a key gene may have endowed humans with superior endurance—allowing them to compete better with other animals on the savanna. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Scientific American

Genetic Tweak Gave Early Humans a Leg Up

jeudi 13 septembre 2018 par Christopher Intagliata — The Sciences, Biology, Evolution

Scientific American

How Mammals Maintain Symmetry during Development

mercredi 12 septembre 2018 par Maya Miller — Advances, The Sciences, Biology, Evolution

Communication with the placenta is key to ensuring body parts grow at the same rate -- Read more on ScientificAmerican.com

Scientific American

The Search for ET May Be Missing Life on Low-Oxygen Worlds

lundi 10 septembre 2018 par Lucas Joel — Advances, EARTH, The Sciences, Evolution, Space

Microbes thrived on ancient Earth, even with very little oxygen -- Read more on ScientificAmerican.com

Scientific American

Ritual Sacrifice May Have Shaped Dog Domestication

dimanche 9 septembre 2018 par Lea Surugue, Sapiens — The Sciences, Biology, Evolution

An ancient Arctic site suggests a complex relationship between humans and canines -- Read more on ScientificAmerican.com

Scientific American

Bonnethead Sharks Are Underwater Lawnmowers

vendredi 7 septembre 2018 par Christopher Intagliata — The Sciences, Biology, Evolution

The hammerhead relatives consume copious amounts of seagrass, and have the digestive machinery to process it—making them true omnivores. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Scientific American

Bonnethead Sharks Are Underwater Lawn Mowers

vendredi 7 septembre 2018 par Christopher Intagliata — The Sciences, Biology, Evolution

The hammerhead relatives consume copious amounts of sea grass, and have the digestive machinery to process it—making them true omnivores. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Scientific American

Hurricane Is a Natural Selection Experiment

jeudi 6 septembre 2018 par Jason G. Goldman — The Sciences, Biology, Evolution

When Hurricane Irma blew through the Turks and Caicos, lizards with shorter hindlimbs lucked out. Jason G. Goldman reports. -- Read more on ScientificAmerican.com

Scientific American

Here's Looking at Humanity, Kid

jeudi 6 septembre 2018 par Gary Stix, Steve Mirsky — The Body, The Sciences, Arts & Culture, Biology, Evolution, Space

Senior Editor Gary Stix talks about the September special issue of Scientific American, devoted to the science of being human. And Brown University evolutionary biologist Ken Miller discusses human... -- Read more on ScientificAmerican.com

Scientific American