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Scientific American

Science news and technology updates from Scientific American

Articles les plus récents

Ancient Sawfish Help to Illuminate Our Teeth's Scaly Origins

vendredi 2 décembre 2022 par Daniel Leonard — Advances, Biology, Evolution
Weird new evidence on tooth evolution tips the scales even more toward scales

Chances of Finding COVID-Causing Virus Ancestor 'Almost Nil,' Virologists Say

vendredi 11 novembre 2022 par Smriti Mallapaty, Nature magazine — Biology, Evolution, Genetics, Health
A genome analysis finds SARS-CoV-2 and bat coronaviruses shared an ancestor just a few years ago, but extensive recombination has muddied the picture

Geologic Activity Lets Microbes Mingle Deep Underground

jeudi 10 novembre 2022 par Joanna Thompson — Advances, Biology, Evolution
Tiny subterranean cracks can upend aquifer microbes’ ecology

Fossils Upend Conventional Wisdom about Evolution of Human Bipedalism

samedi 5 novembre 2022 par Jeremy DeSilva — Features, Biology, Evolution
For most of human evolution, multiple species with different ways of walking upright coexisted

Vertebrates May Have Used Vocal Communication More Than 100 Million Years Earlier Than We Thought

mardi 25 octobre 2022 par Rachel Nuwer — Biology, Evolution
Animals with a backbone may have first emitted something akin to bleeps, grunts, crackles, toots and snorts more than 400 million years ago

Penis Worm's Ancient Cousin Fossilized with Its Doughnut-Shaped Brain Intact

mercredi 5 octobre 2022 par Nicoletta Lanese, LiveScience — Biology, Evolution
The fossilized embryo of a Cambrian worm holds the preserved remains of a tiny brain

Discoveries about Ancient Human Evolution Win 2022 Nobel Prize in Physiology or Medicine

lundi 3 octobre 2022 par Tanya Lewis — Biology, Evolution, Genetics, Paleontology, Anthropology
Svante Pääbo’s work on sequencing the DNA of Neandertals and Denisovans, which won the 2022 Nobel Prize in Physiology or Medicine, revealed surprising interbreeding among human species

The Oldest 3-D Heart from Our Vertebrate Ancestors Has Been Discovered

jeudi 15 septembre 2022 par Stephanie Pappas — Biology, Evolution, Paleontology
Fish fossils from Western Australia preserve the oldest 3-D hearts, livers, stomachs and intestines in a jawed vertebrate

If T. Rex's Beady-Eyed Glare Terrifies You, It Should

jeudi 11 août 2022 par Fionna M. D. Samuels — Biology, Dinosaurs, Evolution
Top-predator dinosaurs of the Cretaceous may have traded big eyes for a bigger bite

In a First, Tiny Crustaceans Are Found to 'Pollinate' Seaweed like Bees of the Sea

jeudi 28 juillet 2022 par Jack Tamisiea — Biology, Animals, Evolution
Small marine critters ferry around seaweed sex cells, the first recorded example of “pollination” in algae

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