How food is shared inside ant colonies has long been invisible in real time. Researchers in Japan have now used a highly sensitive radioactive imaging technique to watch food move from ant to ant, minute by minute. The method reveals unexpected patterns in how resources spread through a group and could help scientists detect early warning signs of stress or imbalance in insect societies, crucial to ecosystems and agriculture.

China’s “Wolf Warrior Diplomacy,” known for its confrontational tone, may be counterproductive in East Asia. However, its impact on public opinion in Japan, South Korea, and Taiwan remains unclear. Now, researchers have found that exposure to such messaging reduced favorability toward China, especially in South Korea. While some perceptions of the United States also declined, these effects were inconsistent. In addition, participants were reluctant to share such messages, suggesting limited persuasive power.

A joint research group consisting of Hikaru Ichida, a doctoral student in the Division of Nano Life Science, Graduate School of Frontier Science Initiative, Kanazawa University; Kosuke Mizuno, currently a Postdoctoral Researcher at the Institute for Protein Research, The University of Osaka; Professor Noriyuki Kodera and Associate Professor Holger Flechsig of the Nano Life Science Institute (WPI-NanoLSI), Kanazawa University; and Associate Professor Satoshi Toda of the Institute for Protein Research, The University of Osaka, has succeeded in visualizing the structural dynamics underlying how the serum protein Afamin stabilizes and transports Wnt3a, a lipid-modified signaling molecule. The study also showed that stable binding between these two molecules depends on both a hydrophobic pocket that accommodates Wnt3a and the structural integrity of Afamin. Wnt proteins are essential molecules that help the body develop properly and maintain healthy tissues. However, because they do not dissolve well in water and are highly hydrophobic, they tend to be unstable in the body. This study has revealed part of the mechanism by which Wnt3a is stably transported with the help of another protein. These findings are expected to deepen our understanding of biological processes involving Wnt3a and may contribute in the future to the development of ex vivo tissue engineering technologies and regenerative medicine.

Nanographenes are organic semiconductor materials used in smartphones, OLED displays, and solar cells. At the molecular level, they are composed of polycyclic aromatic hydrocarbons (PAHs) which are a network of connected benzene rings (hexagon-shaped carbon molecules). Chemists can modify the electronic properties of PAHs by adding more benzene rings to them, changing their size and shape. As such, there is high demand for methods that can selectively extend specific sites of PAH molecules to allow greater versatility in technological applications. New research from Nagoya University introduces a new methodology for developing PAH molecules that has elucidated chemists for years.

Researchers have solved a mystery in fluid dynamics regarding high-speed particle collisions on wet surfaces. They discovered that at high speeds, cavitation (the sudden formation of vapor cavities) changes the liquid shape from a "bridge" to a "dome", releasing the liquid pull-back force. This causes particles to bounce back stronger than they would at lower speeds. Such a vital discovery would drastically improve the safety, design, and durability of ultra-fast motors in the aerospace and automotive industries.

Researchers from The University of Osaka have demonstrated that a wireless electroencephalogram transmission system can operate using energy harvested from the temperature difference between the human body and the ambient air. The low-power device successfully operated outdoors at high temperatures, demonstrating stable performance without external power or airflow. This technology could enable the development of maintenance-free sensing systems for health monitoring and infrastructure applications in the future.

Researchers from The University of Osaka used large-scale simulations and turbulence theory to study how dolphins swim so effectively. The team found that large vortices created by the dolphin’s tail provide most of the propulsion, while smaller vortices contribute little. This discovery improves our mechanical understanding of fast swimming and could guide the design of energy-efficient underwater robots and technologies for controlling turbulence.

Hole structures in advanced components are common sites of fatigue crack initiation. A new hole-strengthening method, Hertz contact rotation expansion processing (HCR-EP), improves surface integrity in Inconel 718 superalloy while avoiding the trade-offs of conventional techniques. Interrupted fatigue tests reveal that compressive residual stress relaxation is the dominant factor governing fatigue life improvement under high-temperature service conditions.

Ten high-frequency “Kuma Sonic” bear deterrent devices were installed in April 2026 in Shirakawa Village, Gifu Prefecture, a UNESCO World Heritage site known for its gassho-style farmhouses. The initiative follows a sharp rise in bear sightings, which nearly quadrupled in one year, alongside growing tourism. Developed by T.M.WORKS and studied by Okayama University of Science, the devices aim to prevent human–bear encounters by emitting sound unpleasant to bears. The installation is part of a broader strategy including habitat management and public safety measures.

Our cells adjust to ever-changing conditions while preserving internal states necessary for survival, but exactly how they achieve both adaptability and stability remains unclear. For the first time, researchers including those from the University of Tokyo used a light-based technique called Raman spectroscopy to create snapshots of the entire protein landscape inside an E. coli cell in a nondestructive manner. Analysis of the data allowed the team to predict the ways in which protein abundances change in certain conditions, which could previously only be done by extracting the target proteins. This led them to observe how abundances of different proteins change depending on how they relate to basic function or situational adaptability.