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Trajectories of obesity prevalence over the past 45 years reveal patterns of growth, plateau and decline that differ across high-, middle- and low-income countries.

LAP1-B--an ultra-faint and tiny galaxy that formed in the reionization era and is strongly magnified by gravitational lensing--is chemically primitive and hosts very few stars in an otherwise dominant dark matter halo.

Connexin proteins found in white perch fish were used to engineer synthetic electrical synapses, enabling precision circuit editing in mammals.

Genetic analysis suggests interbreeding between two groups of human relatives.

Microbiologist Alexander Fleming's 80-year-old advice is still key to protecting the efficacy of antibiotics.

Medical microbiologist Heiman Wertheim explains why the physical appearance and labelling of antibiotics matter when trying to limit resistance.

Yulu Hou and her partner experimented with using ChatGPT to automate marking of undergraduate assignments. Here's what they learnt.

The last antimicrobial peptide was developed decades ago. Now, drug-resistant bacteria are forcing scientists to take a fresh look at this class of antibiotic.

Trials of drugs to fight deadly resistant infections are advancing, but they might fall victim to overuse of agricultural fungicides just like their predecessors.

A programmable photonic quantum processor, Jiuzhang 4.0, incorporates 1,024 high-efficiency squeezed states into a hybrid spatial-temporal encoded 8,176-mode circuit.