The Dakota Zoo began on a farm owned by Marc and Betty Christianson on the northern edge of Bismarck. At first, the farm boarded domestic animals such as dogs, cats, and horses. At one point, the farm was used to raise mink for profit. Over time, people who knew of the Christiansons' love for animals began dropping off strays and injured animals, knowing that they would be well taken care of. As the number of animals increased, word got out and more and more people came to see them.