Deer mice are small rodents commonly found in North America. They have a slender body, large ears, and a long tail, typically measuring about 6 to 8 inches in length. Their fur is usually brown or gray, with a white underbelly, which helps them blend into their natural habitats, such as forests, grasslands, and deserts. These mice are primarily nocturnal and are known for their agility and ability to climb. They are omnivorous, feeding on seeds, fruits, and insects. Deer mice play a significant role in their ecosystems by dispersing seeds and serving as prey for various predators, including birds of prey and snakes.