Rieka, the dominant female in the Exhibit Pack, has been regurgitating food for the pups. You might wonder why she does this. The answer lies in a hormone called prolactin, often referred to as the nurturing hormone. When an adult wolf regurgitates food for the pups, it serves as a way to feed and care for them. This behavior indicates that Rieka has a positive and nurturing relationship with this year's pups. It's a great sign that they will transition smoothly into the pack come late July. #in