First of all, I have great respect for any species that can live and survive in the desert environment. It must be a tough existence.
Here’s a link to a story about a mouse that lives in the desert, eats scorpions, and then howls at the moon. Be sure to click on the link to the audio track that is embedded in the story.
Scientists are interested in this mouse. It seems that there is a genetic component that prevents this mouse from experiencing pain.
In humans, Rowe says, mutations in Nav1.7 cause a syndrome called erythromelalgia. In this disease, a characteristic burning pain in the feet and hands crops up spontaneously. The researchers are now attempting to figure out exactly how the mouse’s mutation in Nav1.8 blocks pain signals, to see if it could help design a new kind of pain killer.
Our pain receptors are a means by which our body tells us that something is dangerous. In some cases, it’s best not to feel the pain because it is “phantom pain” and it serves no purpose other than to annoy us.
UPDATED: I found a video about this mouse. We can hear it “howl at the moon”.