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Scientific American

Science news and technology updates from Scientific American

Articles les plus récents

Mutated Gene That Causes Webbed Limbs in Humans May Have Given Bats Wings

dimanche 1er octobre 2023 par Riley Black — Advances, Biology, Evolution
A key genetic mutation—harmful in humans—may have opened the sky to bats

Possible New Human Species Found through 300,000-Year-Old Jawbone Fossil

mardi 19 septembre 2023 par Dyani Lewis, Nature magazine — Biology, Evolution, Anthropology, Archaeology
A jawbone from eastern China that displays both modern and archaic features could represent a new branch of the human family tree

'Weird' Dinosaur Prompts Rethink of Bird Evolution

vendredi 8 septembre 2023 par Jude Coleman, Nature magazine — Biology, Dinosaurs, Evolution, Paleontology
A newly described fossil is as old as the “first bird,” Archaeopteryx, and represents a birdlike dinosaur that might have specialized in running or wading instead of flying

Human Ancestors Nearly Went Extinct 900,000 Years Ago

mercredi 6 septembre 2023 par Anna Ikarashi, Nature magazine — Biology, Evolution, Genetics, Social Sciences, Anthropology
A new technique for analyzing modern genetic data suggests that prehumans survived in a group of only 1,280 individuals

Two New Toxic Birds Discovered

vendredi 1er septembre 2023 par Carrie Arnold — Advances, Biology, Evolution
Here’s how newfound “spicy” birds resist their potent neurotoxin

The World's Oldest Moss Outlived the Dinosaurs, but It May Not Survive Climate Change

jeudi 10 août 2023 par Chelsea Harvey, E&E News — Evolution, Plants, Environment, Climate Change
The world’s oldest moss has survived Earth’s shifting landscapes for more than 400 million years, but climate change is happening faster than it can adapt

These Salamanders Steal Genes and Can Have up to Five Extra Sets of Chromosomes

lundi 31 juillet 2023 par Aaron Martin — Biology, Animals, Evolution
Unisexual salamanders in the genus Ambystoma appear to be the only creatures in the world that reproduce the way they do. Researchers know how, but the why is still being figured out.

Munching Bugs Gave the First Mammals an Edge

lundi 31 juillet 2023 par Riley Black — Advances, Biology, Evolution
Early mammals got ahead by eating insects

Dolphins and Whales Will Never Evolve Back into Land Animals

lundi 17 juillet 2023 par Jacklin Kwan, LiveScience — Biology, Animals, Evolution
Scientists have discovered that once mammals, such as dolphins or orcas, have become fully aquatic, they pass a threshold that makes a return to terrestrial landscapes almost impossible

These Predators Had a Face like an Axe and Will Haunt Your Nightmares

mercredi 7 juin 2023 par Flora Lichtman — Biology, Animals, Evolution
Terror birds were the grizzly bears of birds, the great white sharks of the land, Jack the Ripper but with feathers. They were also truly fascinating.

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