Peromyscus is a genus of small rodents commonly known as deer mice. These creatures are found throughout North America, thriving in various habitats like forests, grasslands, and deserts. They are characterized by their large ears, long tails, and soft fur, which often has a mix of brown and white colors. Deer mice are primarily nocturnal and are known for their agility and ability to climb. These mice play a crucial role in their ecosystems as both prey and seed dispersers. They feed on seeds, fruits, and insects, helping to maintain the balance of their environments. Additionally, Peromyscus species are often studied in scientific research, particularly in areas like genetics and disease transmission.