A very common desert rodent, but seldom seen since they are mostly active at night.
Look for evidence of why they might be leaning against each other!
The Cricetidae are a family of rodents in the large and complex superfamily Muroidea. It includes true hamsters, voles, lemmings, and New World rats and mice. At almost 600 species, it is the second largest family of mammals, and has members throughout the New World, Asia, and Europe.