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Observations have revealed a galaxy that stopped forming stars earlier than expected. This discovery offers clues about when the first galaxies emerged and sheds light on how stars formed when the Universe was in its infancy.
Researchers find that brief and reversible inhibition of a gene-silencing mechanism leads to irreversible tumour formation in fruit flies, challenging the idea that cancer is caused only by permanent changes to DNA.
A parachute-like skin membrane, the patagium, evolved independently in several marsupial species. Genomic analysis suggests that this trait came about through different changes to the regulation of the same gene.
Birds emerge as top suspects for unexplained flower mutilation, and reflections from 1974 mark the 21st anniversary of the discovery of the DNA double helix, in the weekly dip into Nature’s archive.
A technique called surface-enhanced Raman spectroscopy can detect tiny quantities of compounds in solution, but has been difficult to use for quantitative analysis. A digital approach involving nanoparticles suggests a way forward.
How does the human brain temporarily store information without losing track of it? Neuroscientists have discovered that neurons in the frontal and temporal lobes work together to hold information in working memory.
Bacteria make protein toxins to compete with other bacteria in microbial communities. A study of a common soil bacterium has revealed a previously unknown type of antibacterial toxin that forms a striking umbrella-like structure.
Mating between different species has often been considered an evolutionary dead end, but a study in longwing butterflies suggests that such hybridization could underlie the origins of a new species.
The hinge enables insects to control their wing movements, but how it works is hard to study. Multidisciplinary research, using imaging and machine-learning methods, now sheds light on the mechanism that underlies its operation.
The sympathetic nervous system, which enables the fight-or-flight response, was thought to be present only in jawed vertebrates. Analysis of a jawless vertebrate suggests that this system might be a feature of all animals with a spine.
Paring down the astronomical complexity of the protein-folding problem, plus Isaac Newton’s ambiguous use of the word ‘axiom’, in the weekly dip into Nature’s archive.
Is there a conservation benefit if tropical forests that are affected by logging gain certification from the Forest Stewardship Council? An analysis of the biodiversity outcomes in such tropical forests provides answers.
Nanoscale systems that release small molecules have potential therapeutic and industrial uses, but can result in low numbers of molecules reaching their target. A release system triggered by mechanical force offers a fresh approach.
Microscopic magnetic fields form in non-magnetic materials when light makes the atoms rotate. A similar macroscopic effect has long been known, but proof of its atomic equivalent could give rise to ultrafast data processing.
Animals that receive an inhibitor of an antiviral cell-death response called necroptosis are less likely to die of influenza even at a late stage of infection. This has implications for the development of therapies for respiratory diseases.
The sensing of bitter taste results from the complex interplay of many chemical cues and a range of receptors. It emerges that this complexity might be built-in even at the level of individual receptors.
What every biologist should know about electronics, plus a disturbing outbreak of volcanism in North Carolina, in the weekly dip into Nature’s archive.
Scientists have designed a liquid that behaves as both a solid and a fluid owing to the presence of tiny gas-filled capsules. An unusual relationship between pressure and volume enables this material to grasp fragile objects.
The idea that three different free radicals could be used together to carry out specific steps in a chemical reaction has long been implausible. A ‘radical sorting’ strategy now achieves this feat to make organic molecules.
The complexity of fitting brakes to all four wheels of a car and the simplicity of John Maynard Smith’s ecological models, in the weekly dip into Nature’s archive.
