What is a perognatnus nelsoni?

Perognathus nelsoni, commonly known as Nelson's pocket mouse, is a small rodent belonging to the family Heteromyidae. It is primarily found in the arid regions of the southwestern United States and parts of Mexico. Characterized by its large ears and long tail, this species is adapted to a desert habitat, where it primarily feeds on seeds and insects and utilizes burrowing as a means of avoiding predators and extreme temperatures. Nelson's pocket mouse plays a role in the ecosystem by aiding in seed dispersal.