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Octopus Skin Senses Light, No Eyes or Brain Needed

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

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

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

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

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

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

Where Is Avian Flu Hiding?

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

The Oldest Old Are Astonishingly Healthy

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

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

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

Seashell Shapes Show Strength for Safety

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

Seashell Shapes Show Strength For Safety

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

First Warm-Blooded Fish Discovered

The opah's warm blood allows it to swim faster at depths nearing 400 meters -- Read more on ScientificAmerican.com

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