His family expected him to be there for a few weeks until he was strong enough to come home, but after just a few hours of being there, the D'Emilios said they discovered mice in the facility.

References [1] Individual odour signatures that mice learn are shaped by involatile major urinary proteins (MUPs). BMC Biology (2018). [2] Update on the human and mouse lipocalin (LCN) gene family ...

More information: Alexandros Vezyrakis et al, Effects of behavioural types on the problem‐solving performance of wild house mice under controlled and semi‐natural conditions, Oikos (2025).