《宋书·志·卷三十三》
晋成帝咸和六年六月，叁递一百姓家有头公猪生下两头小猪，小猪都有张人脸，像胡人的样子，身子还是猪身。
晋成帝咸和六年六月，钱塘民家豭豕生两子，皆人面，如胡人状，其身犹豕。
In June of the sixth year of Emperor Cheng of Jin's Xianhe, for three days in a row, a male pig in a commoner's family gave birth to two piglets, both piglets had human faces, like Hu people, but their bodies were still pig bodies.