Kaguya (mouse)

Kaguya was the first bimaternal mouse created in laboratory using two eggs from female parents by Tomohiro Kono and colleagues at Tokyo University of Agriculture as described in a 2004 paper in Nature. This was a hallmark experiment as natural fertilization in mice requires the contribution of an egg from the female parent and a sperm from the male parent. The first bimaternal mouse was named after a Japanese folk tale, in which the Moon-born princess Kaguya (Kaguya-hime) is found as a baby inside a bamboo stalk.