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Octopus Skin Senses Light, No Eyes or Brain Needed

jeudi 21 mai 2015 — More Science, Biology, Chemistry, Ecology, Evolution, Evolutionary Biology, Neuroscience

The skin of a California octopus species has a molecular light-sensing mechanism that allows it to change color to match its surroundings with no input from the creature's eyes or brain. Dina Fine... -- Read more on ScientificAmerican.com

Scientific American

Archaeologists Take Wrong Turn, Find World's Oldest Stone Tools [UPDATED]

mercredi 20 mai 2015 — More Science, Biology, History of Science, Evolution, Archaeology & Paleontology, Evolutionary Biology, Technology

SAN FRANCISCO–Archaeologists working in the Kenyan Rift Valley have discovered the oldest known stone tools in the world. Dated to around 3.3 million years ago, the implements are some 700,000... -- Read more on ScientificAmerican.com

Scientific American

Archaeologists Take Wrong Turn, Find World's Oldest Stone Tools [Update]

mercredi 20 mai 2015 — More Science, Biology, History of Science, Evolution, Archaeology & Paleontology, Evolutionary Biology, Technology

Scientific American

How Structure Arose in the Primordial Soup

mardi 19 mai 2015 — More Science, Biology, Evolution

Researchers are resurrecting ancient proteins to illuminate Earth’s biological dark ages -- Read more on ScientificAmerican.com

Scientific American

Where Is Avian Flu Hiding?

lundi 18 mai 2015 — More Science, Biology, Everyday Science, Society & Policy, Energy & Sustainability, EARTH, Environment, Evolution, Health, Biotechnology, Ethics, Infectious Diseases, Medical Technology, Pharmaceuticals

Three strains of the virus are decimating poultry farms across the country, but how they’re being transmitted remains unclear -- Read more on ScientificAmerican.com

Scientific American

The Oldest Old Are Astonishingly Healthy

lundi 18 mai 2015 — Features, More Science, Biology, Evolution, Evolutionary Biology, Health, Mind & Brain

People in their late 90s or older are often fitter than those 20 years younger. Traditional views of aging may need rethinking -- Read more on ScientificAmerican.com

Scientific American

Animals Don't Use Facebook but They Have Social Networks, Too

samedi 16 mai 2015 — More Science, ARTS & CULTURE, Biology, Evolution, Evolutionary Biology, Mind & Brain, Psychology, Thought & Cognition

Lee Dugatkin, evolutionary biologist and behavioral ecologist at the University of Louisville, talks about his article in the June Scientific American called "The Networked Animal," about... -- Read more on ScientificAmerican.com

Scientific American

Seashell Shapes Show Strength for Safety

vendredi 15 mai 2015 — More Science, Biology, Ecology, Evolution, Evolutionary Biology

Analysis of clamshell and screw-shaped shells reveals the structures withstand much greater forces than would a simple sphere or cylinder. Cynthia Graber reports -- Read more on ScientificAmerican.com

Scientific American

Seashell Shapes Show Strength For Safety

vendredi 15 mai 2015 — More Science, Biology, Ecology, Evolution, Evolutionary Biology

Analysis of clamshell and screw shaped shells reveals the structures withstand much greater forces than would a simple sphere or cylinder. Cynthia Graber reports. -- Read more on ScientificAmerican.com

Scientific American