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The paper that reported the animal’s discovery was retracted following new evidence from a similar fossil -- Read more on ScientificAmerican.com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

Civil War Vaccine May Have Lessons for COVID-19

lundi 20 juillet 2020 par Susanne Bard — Health, Public Health, The Sciences, Arts & Culture, Biology, Evolution

Vaccination used against smallpox during the Civil War reveals the identity of the distantly related virus used to keep troops disease-free. -- Read more on ScientificAmerican.com

Scientific American

'Tiny Bug Slayer' Dinosaur Relative Would Fit in the Palm of a Hand

mardi 14 juillet 2020 par Laura Geggel, LiveScience — The Sciences, Evolution

A fossil from Madagascar shows giant dinosaurs and pterosaurs originated from teensy ancestors -- Read more on ScientificAmerican.com

Scientific American

How Oak Trees Evolved to Rule the Forests of the Northern Hemisphere

mardi 14 juillet 2020 par Andrew L. Hipp, Paul S. Manos, Jeannine Cavender-Bares — Features, The Sciences, Evolution

Genomes and fossils reveal their remarkable evolutionary history -- Read more on ScientificAmerican.com

Scientific American

Polynesians and Native South Americans Made 12th-Century Contact

vendredi 10 juillet 2020 par Christopher Intagliata — The Sciences, Evolution

Scientists have found snippets of Native South American DNA in the genomes of present-day Polynesians, and they trace the contact to the year 1150. Christopher Intagliata reports. -- Read more on ScientificAmerican.com

Scientific American

Bat Says Hi as It Hunts

mercredi 8 juillet 2020 par Jason G. Goldman — Mind, Cognition, The Sciences, Biology, Evolution

Velvety free-tailed bats produce sounds that help them locate insect prey but simultaneously identify them to their companions. -- Read more on ScientificAmerican.com

Scientific American