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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

The Meaning of Time in the Place where Humanity's Earliest Ancestors Arose

samedi 27 juin 2020 par Eliot Bush — The Sciences, Evolution

In Kenya’s Lake Turkana region, fossils of long-ago primates endure amid a transforming landscape -- Read more on ScientificAmerican.com

Scientific American

The Messenger Is the Message

vendredi 26 juin 2020 par Steve Mirsky — Mind, Behavior & Society, Cognition, The Sciences, Evolution, Policy & Ethics

Behavioral scientist Stephen Martin and psychologist Joseph Marks talk about their book Messengers: Who We Listen To, Who We Don’t, and Why. -- Read more on ScientificAmerican.com

Scientific American

Science Briefs from around the World

jeudi 25 juin 2020 par Sarah Lewin Frasier — Sustainability, Conservation, EARTH, Environment, The Sciences, Biology, Chemistry, Evolution

Here are some brief reports about science and technology from around the planet, including one about a 70-million-year-old mollusk fossil that reveals years back then had a few more days than we... -- Read more on ScientificAmerican.com

Scientific American