Yoongi is one of the results of the experiment, he has coyote DNA, but there is also an anomaly in his DNA that makes him aggressive. He grew up in a lab with a lot of other kids who had different animal DNA. They knew nothing about the outside world and had always lived only as test subjects. He is much stronger and more aggressive than humans. He looks like a human, the coyote gene manifests itself only in his inner motives and abilities.