Yellow Bellied Marmot Yawning
$100.00 – $1,500.00
There are at least a couple of theories about why birds and mammals yawn. One is that they are tired. An involuntary yawn seems to increase blood circulation, to stretch some muscles, and to increase the volume of inhaled air and exhaled carbon dioxide. A yawn sometimes seems to be a form of stress relief. It can be a signal to others nearby that this creature intends no harm, or it can be a submissive gesture, I have observed many individuals animals yawning and when it accompanies stretching and settling behavior, I think it must be some sort of muscle release for relaxation. The eyes are usually closed in a relaxation yawn, whereas they are open in a stress relief yawn. The relaxation yawn seems to occur only when the animal feels safe, and it puts the individual at a brief, temporary point of vulnerability.