The African Pygmy Mouse, (Mus minutoides) is possibly the smallest mammals in the world. It belongs to the enormous superfamily name's Muroidea, Which includes about 1000 different species. If we look into their sex, it is totally different from other animals. African Pygmy Mice reach breeding age at about 6 to 8 weeks.Pregnancy lasts for around 20 days and the little of about 3 young is born blind and hairless.Their eyes open after 2 weeks, and wearing is complete after 4 weeks. Their life is about 2 Years, although some specimens live 4 years in capacity. If we look into their volume, the adults are between 30 and 80 mm (1.2 and 3.1 in) long, with a 20 to 40 mm (0.79 to 1.6 in) tail, and weight from 3 to 12 g (0.11 to 0.42 oz).