Whenever a mouse is in fear, it will show this very typical behavior by staying at one corner of the box, trying to not move any part of its body, and this posture is called freezing.
Når en mus er bange, vil den vise en meget typisk adfærd ved at blive i det ene hjørne af kassen, og prøver på ikke at bevæge sig, og denne positur kaldes at fryse.