Nala cornered this opossum on the front walk to our home. When threatened or harmed, they will “play possum”, mimicking the appearance and smell of a sick or dead animal. This physiological response is involuntary (like fainting), rather than a conscious act. I can now say from first hand experience that this survival mechanism is 100% believable. Moments after we cleared the area, the possum made a miraculous recovery and scampered off into the brush.