Genus Mus, commonly known as mice, are small mammals that are found all around the world. These creatures have a long history of interaction with humans, from being seen as pests to being kept as pets. There are a few common synonyms for Genus Mus, including Muridae, Murinae, and Musculus. Muridae refers to the family of rodents that includes mice and rats, while Murinae refers to subfamily of mice within Muridae that contains most of the common mouse species. Musculus, which is derived from the Latin word for "mouse," is a more general term that can refer to any type of mouse, whether it be a field mouse or a house mouse. Despite their small size, mice have a big impact on the world and continue to intrigue and amaze humans with their intelligence, agility, and unique behaviors.