C589 The past must be looked back

There were few pigs on the Second Earth, because this species was not impossible to breed in this region, but its nutritional value was not recognized. But the people of the Second Earth do not reject them. One of the treasures was considered a treasure, such as the Swine.

The Swine, also known as "ginseng pig", is a kind of ancient animal resource in western Sichuan Plateau, Yunnan, Tibet