1. Genetic factors: Similar facial features often appear in families. Glacier princes come from similar genetic backgrounds or families, which leads to their certain similarities in appearance.
2. Training and lifestyle: Glacier princes have similarities in competitive training and lifestyle. They have experienced similar training programs, eating habits and living rules, which will also have a certain impact on external similarity.
3. Team uniform and hairstyle: Glacier princes will wear the same team uniform and have similar hairstyles in the competition, which will also increase their similarity in appearance.