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Scientific American

Science news and technology updates from Scientific American

Articles les plus récents

Tree Roots May Have Set Off a Mass Extinction

mardi 14 mars 2023 par Joanna Thompson — Advances, Biology, Evolution
The evolution of terrestrial plant roots could have kicked off large-scale extinctions by throwing the planet’s mineral cycle into disarray

Inside the Scientific Quest to Save (Most) of the World's Parasites

lundi 13 mars 2023 par Emily V. Driscoll — Biology, Evolution, Microbiology, Climate Change
Scientists are on a mission to save parasites—not to kill them. Climate change is already doing an increasingly good job at the latter, and that could be a big problem for the world.

Evolution Turns These Knobs to Make a Hummingbird Hyperquick and a Cavefish Sluggishly Slow

vendredi 24 février 2023 par Viviane Callier — Biology, Evolution
By tuning the enzymes that control the breakdown or storage of sugars, hummingbirds and cavefish adapt their metabolism to meet the demands of the vastly different environments in which they live

Mammals That Live Together Live Longer

mardi 31 janvier 2023 par Jack Tamisiea — Biology, Animals, Evolution
Mammal species that live in groups seems to live longer than those that lead solitary lives

How Plants' Plumbing Let Them Conquer the World

vendredi 27 janvier 2023 par Elise Cutts — Advances, Biology, Evolution
To protect from deadly drought and make it on land, plants developed complicated inner plumbing

Why COVID's XBB.1.5 'Kraken' Variant Is So Contagious

mardi 10 janvier 2023 par Ed Browne — Biology, Evolution, Health, Epidemiology
A new variant of the virus that causes COVID has mutations that make it more transmissible, but vaccines are still likely to protect against severe disease

The Biggest Health and Biology Breakthroughs of 2022

mardi 20 décembre 2022 par Tanya Lewis — Biology, Evolution, Health, Vaccines
From reviving dead pig organs to measuring viruses in our poop, here are some of the most intriguing medical advances of the year

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

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