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How dramatic daily swings in oxygen shaped early animal life

Imagine a world where the oxygen you need changes dramatically between day and night. Your world shifts from being rich in oxygen (oxic) in the day, so you have energy to hunt for food, to suffocatingly oxygen-free (anoxic) ...

From dinosaurs to birds: The origins of feather formation

Feathers are among the most complex cutaneous appendages in the animal kingdom. While their evolutionary origin has been widely debated, paleontological discoveries and developmental biology studies suggest that feathers ...

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Plants & Animals
Gorillas match chimpanzees in self-awareness study
Evolution
How big brains and flexible skulls led to the evolution of modern birds
Evolution
Genomic study indicates our capacity for language emerged 135,000 years ago
Plants & Animals
Koalas in Queensland show unique immunity to deadly retrovirus
Evolution
DNA and 90 million-year-old pollen fossils reveal new insights into evolution of Asian tropics
Evolution
Snakes' secret language of ultraviolet color: A hidden world of predator evasion and camouflage
Evolution
Predatory behavior is an inherited trait across multiple generations in nematodes
Evolution
We modeled how early human ancestors ran—and found they were surprisingly slow
Evolution
East Asian human gene that allows adult humans to digest sugars in milk likely came from Neanderthals
Evolution
Deep-sea fish study reveals evolutionary marvels in Earth's hadal zone
Evolution
Scientists explain energy transfer mechanism in chloroplasts and its evolution
Evolution
Neurons' reverse migration: Exploring the brain's evolutionary architecture
Plants & Animals
A new name for one of the world's rarest rhinoceroses
Evolution
Triassic Life: An overview of ancient amphibians, crocodile relatives, early dinosaurs and mammalian ancestors
Plants & Animals
Heliconius butterfly mating choices linked to simple neural change, which could speed evolution
Evolution
Spider development and vision: A genetic perspective
Evolution
Birds' high blood sugar defies aging expectations
Plants & Animals
600 million years of shared environmental stress response found in algae and plants
Evolution
Shells of their former selves: How sea snails have adapted to invasive predators
Plants & Animals
New research shows bigger animals get more cancer, defying decades-old belief

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Biochemistry
Study unravels mystery of cancer-fueling enzyme, which could lead to new therapies
Biotechnology
Diagnostic technology achieves near 100% accuracy in pathogen identification within three hours
Analytical Chemistry
Oxygenation strategy provides facile route to long-wave infrared birefringent crystals
Plants & Animals
A hit of dopamine tells baby birds when their song practice is paying off
Bio & Medicine
DNA-loaded lipid nanoparticles are poised to bring gene therapy to common chronic diseases
Analytical Chemistry
Nickel(0) and boron—together at last in square-planar complexes
Biotechnology
New spray technology helps pesticides stick to plant leaves to reduce polluting runoff
Nanophysics
Magnetic 'microflowers' enhance local magnetic fields
Biochemistry
Dynamic density functional theory offers new approach to understanding protein–membrane interactions
Astronomy
Astronomers provide insights into the hot gaseous halo of galaxy NGC 7793
Social Sciences
Are dogs the new children? Birth rates and dog ownership analyzed in study
Condensed Matter
Listening to quantum atoms talk together thanks to acoustics
Archaeology
Skeletal analysis in Tombos tombs finds hardworking individuals buried among the elite
Biotechnology
Japanese scientists pioneer nonviral gene delivery in primates
Cell & Microbiology
C. diff uses toxic compound to fuel growth advantage, researchers discover
Soft Matter
Quantum computing tackles classical fluid dynamics challenges
Earth Sciences
Ocean eddies are the food trucks of the sea: Study reveals lipidome composition of mesoscale eddies
Planetary Sciences
'Mars and Earth are even more different than we thought': Condensing 20 years of atmospheric wave observations
Biotechnology
Scientists unlock frogs' antibacterial secrets to combat superbugs
Social Sciences
Language ambiguity: How children and adults interpret contextual pronouns differently