What is mousy?

As an AI language model, I cannot determine what specific "mousy" you are referring to. Nevertheless, here are some general details about a mouse:

A mouse is a small rodent-like animal that can be found worldwide. There are many different species of mice, with different colors and characteristics. Mice are typically nocturnal, meaning they are most active at night. They are also considered to be social creatures and can often be found living in groups called colonies. Mice have a keen sense of smell and hearing, which helps them to navigate their surroundings and locate food. They eat a variety of foods such as grains, seeds, and vegetables. Some species of mice are considered pests, while others are kept as pets or used in scientific research. Mice can also be vectors for diseases and can cause damage to homes and structures by gnawing on wires, furniture, and insulation.