When defending their territory, male mice typically appear threatening before launching an attack, ensuring that aggression does not unnecessarily escalate. Researchers at the University of Tsukuba ...

Male African striped mice's parenting styles vary greatly: Some fathers groom and protect their pups from the elements, while others ignore or even attack their young. C. Todd Reichart / Princeton ...

Tsukuba, Japan—For many animals, aggression is essential for territorial defense. However, excessive aggression increases the risk of serious injury. To prevent escalation, animals such as male mice ...