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How Birds Evolved Their Incredible Diversity

lundi 24 août 2020 par Kate Wong — Features, The Sciences, Biology, Evolution

An analysis of 391 skulls shows that birds evolved surprisingly slowly, compared with their dinosaur forerunners -- Read more on ScientificAmerican.com

Scientific American

Prehistoric Marine Reptile Died after a Giant Meal

samedi 22 août 2020 par Christopher Intagliata — The Sciences, Evolution

Researchers found extra bones within a 240-million-year-old ichthyosaur fossil—which they determined to be the ichthyosaur’s last, possibly fatal meal. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Scientific American

Cows with Eye Images Keep Predators in Arrears

mercredi 19 août 2020 par Susanne Bard — Sustainability, Conservation, Environment, The Sciences, Evolution

Butterflies, fish and frogs sport rear-end eyespots that reduce predation. Painting eye markings on cows similarly seems to ward off predators. -- Read more on ScientificAmerican.com

Scientific American

Warbler Species Fires Up Song Diversity

mardi 18 août 2020 par Karen Kwon — Neuroscience, Conservation, Environment, Natural Disasters, The Sciences, Biology, Evolution

Hermit warblers in California have developed 35 different song dialects, apparently as a result of wildfires temporarily driving them out of certain areas. -- Read more on ScientificAmerican.com

Scientific American

A 429-Million-Year-Old Trilobite Had Eyes like Those of Modern Bees

jeudi 13 août 2020 par Riley Black — The Sciences, Biology, Evolution

A rare cracked fossil shows the world through ancient eyes -- Read more on ScientificAmerican.com

Scientific American

The World's Highest-Dwelling Mammal Lives atop a Volcano

vendredi 7 août 2020 par Julia Rosen — The Sciences, Biology, Evolution

Scientists spotted a mouse at the summit of Llullaillaco, a 22,000-foot-tall volcano on the border of Chile and Argentina. Julia Rosen reports. -- Read more on ScientificAmerican.com

Scientific American

The Chance of Identical Fingerprints: 1 in 64 trillion

jeudi 6 août 2020 — The Body, The Sciences, Evolution

Originally published in June 1894 -- Read more on ScientificAmerican.com

Scientific American

Translucent Frog Optics Dial In Camo Color

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

Rather than undergoing active chameleon-like color changes, glass frogs' translucency allows light to bounce from their background through them--making their apparent color close to their setting.... -- Read more on ScientificAmerican.com

Scientific American

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