How Do We Know if an Animal Is Bold or Shy?

How do we know an animal is displaying a personality trait versus a fleeting emotion or a random action? Ivy leads us through the trees up to the top of a hill to this tiny clearing. She moves the mouse that was put into the bag for data collection back into the Ferrari trap, also called an emergence trap. If a mouse takes a long time to leave the trap, Alessio says that mouse is likely shy,. A more curious, bold individual will just get out.