Professor N.E. Hansen was a Plant Explorer for the U.S. Department of Agriculture. He brought back seeds, plants, fruits and vegetables that he gathered throughout Siberia, China, Japan, Korea and far Northern Europe. While in Asia Minor, he found fat-rumped tail-less sheep. He purchased some and had them freighted back to South Dakota for James Wilson, South Dakota State University animal science professor. Wilson bred these sheep with 成人视频鈥檚 flock trying to bring the tail-less trait. It proved to be a trait was not inheritable.