Yawning coupled with penile erection is a conserved neurobehavioral syndrome mediated by the paraventricular hypothalamus (PVH). However, the distinct roles of oxytocin and its co-transmitters remain unresolved. Using chemogenetics, we showed that activation of PVH oxytocin neurons was sufficient to elicit both responses, whereas silencing these neurons abolished them. Viral tracing revealed that these neurons project collater...

Channel catfish calicivirus (ChCV) has emerged as a novel viral pathogen threatening the sustainability of channel catfish ( Ictalurus punctatus ) aquaculture. The absence of rapid, on‐site detection methods has hindered effective disease prevention and control. In this study, a visual RPA‐CRISPR/Cas12a detection platform targeting the conserved non‐structural protein (NS) gene of ChCV was established, and the key reaction par...