You might have been using mice without any problems, but when you look back, how confident are you about your mice colony management? Although you have learned "the basics of mice" before, revisiting the basics and refreshing your knowledge will give you confidence in your research data and secure its reproducibility. Furthermore, passing on the knowledge to your colleagues or students will make this research community better. This seminar will highlight the basics of mice, including nomenclature, genetic drift, and colony management.