Deltamethrin disrupts gut bacteria and brain clock signaling, impairing antibacterial immunity in Nile tilapia through the brain–thyroid–immune axis. Dietary sodium butyrate alleviates this immune damage.

A research team has discovered a new low-energy thermodynamic response in the frustrated quantum magnet SrCu₂(BO₃)₂ by combining high-pressure, low-temperature, and magnetic-field measurements. Using advanced calorimetry techniques, the team observed a robust T-linear specific heat region near the pressure-induced first-order transition between the plaquette-singlet and antiferromagnetic states. This finding reveals a previously unexplored regime of gapless excitations in a quantum magnetic insulator and offers new opportunities for studying emergent phenomena in strongly correlated systems.

Subcutaneous immunization with live influenza virus in mice provided durable protection against lethal flu, outperforming intramuscular or inactivated vaccines. The virus remained restricted to the injection site and lymph nodes without causing lung damage. A single dose gave 100% protection for 277 days through strong germinal center responses.

Researchers developed SwiVirScan, a screening platform containing 36,416 peptides from 140 swine-associated viruses. In 127 adult breeding pigs, every serum sample showed antibody reactivity to peptides assigned to multiple viruses. The study also identified a persistent association between antibody signals for porcine bufavirus and porcine circovirus 3. The findings can guide follow-up surveillance, but antibody signals alone do not establish active infection.

This review evaluates China's first basin-scale aquatic ecosystem monitoring pilot in the Yangtze River Basin and demonstrates that shifting from chemical water-quality compliance to integrated, classification-based ecosystem assessment can support measurable ecological recovery. The review shows how tailoring indicators and targets to distinct rivers, lakes, and reservoirs across the basin can help guide targeted restoration and produce tangible results.

Dogs spontaneously follow the walking direction of a human figure represented by just a few moving dots, yet show no such directional bias when the dots depict another dog. In a study published in Cognitive Science Research, researchers found that dogs respond to directional cues from human biological motion as readily as they do to human head turns, suggesting that domestication may have tuned canine social perception to human movement.