Large groups of mahi-mahi may interfere with striped marlin hunting at shared prey schools, causing the marlin to abandon a hunt. The study also found that smaller numbers of mahi-mahi may increase the marlin’s net captures.
Researchers used large language models to create artificial survey respondents for a weekly look at the 2026 US House elections. Adding personal memories and news exposure shifted the estimates toward Democrats, but the resulting 18.7-point Democratic margin was well above the 8.7-point polling average, leaving the method’s predictive accuracy unresolved.
Researchers report that silicon spin qubits can perform precise operations in parallel, overcoming a major source of error during simultaneous control. In a five-qubit array, gate fidelities stayed above 99.99% for up to three qubits and above 99.9% when all five operated together.
Researchers have used hydrogen plasma to process Nd-Fe-B magnet machining waste, separating it into metallic iron and a rare-earth oxide-rich fraction. The process also formed rare-earth hydrides, creating feedstocks that could be used in further magnet production without acid.
A study in Ladakh, India, found that three closely related pika species use different combinations of elevation, vegetation and rock cover. The results show that a species that appears broadly distributed across a mountain region can still be highly selective at smaller scales.
A cluster-randomized human study in 210 adults with recently detected stage 1 hypertension in Uzbekistan compared salt-sensitivity testing followed by assigned medication choices with conventional management. After 12 weeks, more participants in the testing-guided group reached the study's blood pressure target, although the study was small, short, and conducted in only three primary care centers.
Satellite tracking of 21 southern right whales from Aotearoa New Zealand found that they used one of two routes to reach shared summer feeding grounds. The results suggest the whales may balance faster travel against lower energy costs, while adjusting their route as individuals.
Predators can trigger different body shapes in Rana pirica tadpoles. The shapes improve swimming efficiency, but the swollen body that helps protect tadpoles from being swallowed also creates drag and reduces escape performance compared with a deeper tail alone.
An article explores how nanomaterials could support water purification as pollution and water scarcity put pressure on clean supplies. It discusses materials that trap toxic metals and membranes designed to filter very small contaminants, while noting their possible uses and limitations.
Adult domestic dogs associated the sound “Bouba” with rounded shapes and “Kiki” with spiky shapes, according to a study in Proceedings of the Royal Society B. The result resembles a sound-and-shape association reported in humans and young chicks, but its function and development remain unknown.
A study of the Ediacaran fossil Charniodiscus suggests it contained densely aligned, collagen-like fibres and a load-bearing stem. The findings support the view that this frond belonged to a broad early animal lineage rather than being a sponge, placozoan or other non-animal organism.
Carrion crows were trained to respond to visual cues with either a vocalization or a peck. Vocal responses were slower and more variable, and switching into them caused additional delays and occasional errors that were largely absent for pecking.
A study of bonobos estimates that moving on two legs could fit into a varied movement repertoire without creating an immediate energy constraint. The findings suggest early human ancestors may have incorporated bipedalism before it became highly efficient.
Japanese bent-winged bats adjusted their echolocation frequencies in response to sounds that could interfere with their calls. A mathematical model and a two-dimensional group simulation indicate that this self-organized behavior can reduce potential misdetections across a flying group.
North Pacific spiny dogfish produced cortisol, challenging the long-standing view that sharks and their relatives do not make the hormone. The study also found that cortisol implants persistently lowered blood glucose, while having little effect on blood osmolytes.
