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Translucent Frog Optics Create Camo Color

mardi 4 août 2020 par Emily Schwing — Environment, The Sciences, Biology, Evolution, Physics

Rather than undergoing active chameleonlike color changes, glass frogs’ translucency allows light to bounce from their background and go through them—making their apparent color close to... -- Read more on ScientificAmerican.com

Scientific American

How Do Scientists Determine the Ages of Human Ancestors, Fossilized Dinosaurs and Other Organisms?

mardi 4 août 2020 par Scott Hershberger — The Sciences, Evolution

Experts explain how radiometric dating allows them to reconstruct ancient time lines -- Read more on ScientificAmerican.com

Scientific American

Humans Evolved to Be Friendly

jeudi 30 juillet 2020 par Brian Hare, Vanessa Woods — Features, The Sciences, Evolution

Cooperation made Homo sapiens the last human species standing -- Read more on ScientificAmerican.com

Scientific American

One Mystery of Stonehenge's Origins Has Finally Been Solved

mercredi 29 juillet 2020 par Scott Hershberger — The Sciences, Chemistry, Evolution

Detailed testing of the chemical signature of the Neolithic monument’s most prominent large stones pinpointed where they came from -- Read more on ScientificAmerican.com

Scientific American

When the First Farmers Arrived in Europe, Inequality Evolved

mardi 28 juillet 2020 par Laura Spinney — Features, The Sciences, Evolution

Forests gave way to fields, pushing hunter-gatherers to the margins—geographically and socially -- Read more on ScientificAmerican.com

Scientific American

Science News Briefs from around the Planet

lundi 27 juillet 2020 par Sarah Lewin Frasier — Public Health, Sustainability, Environment, Natural Disasters, The Sciences, Evolution, Physics

Here are some brief reports about science and technology from all over, including one about how a lizard population responded to hurricanes by developing larger and stickier toe pads on average. -- Read more on ScientificAmerican.com

Scientific American

World's Smallest Dinosaur Is Probably a Lizard

vendredi 24 juillet 2020 par Giuliana Viglione, Nature magazine — The Sciences, Evolution

The paper that reported the animal’s discovery was retracted following new evidence from a similar fossil -- Read more on ScientificAmerican.com

Scientific American

Old Art Offers Agriculture Info

vendredi 24 juillet 2020 par Susanne Bard — EARTH, The Sciences, Arts & Culture, Biology, Chemistry, Evolution

Art museums are filled with centuries-old paintings with details of plants that today give us clues about evolution and breeding practices. -- Read more on ScientificAmerican.com

Scientific American

Controversial Cave Discoveries Suggest Humans Reached Americas Much Earlier Than Thought

jeudi 23 juillet 2020 par Colin Barras, Nature magazine — The Sciences, Evolution

Archeologists say stone artifacts point to occupation more than 30,000 years ago—but not everyone is convinced -- Read more on ScientificAmerican.com

Scientific American

Cricket Avoids Being Bat Food by Doing Nothing

jeudi 23 juillet 2020 par Emily Schwing — Neuroscience, Environment, The Sciences, Evolution

The sword-tailed cricket can discern bats’ echolocation signals by only responding to calls of a certain volume—at which point it plummets out of their approach. -- Read more on ScientificAmerican.com

Scientific American