Posted by Stephen Reed, Communications Photos by Jeremy Dwyer-Lindgren/Woodland Park Zoo Gray wolf sisters Kaya, Doba and Shila recently celebrated an 11th birthday! The three sisters, born April 27, 2010, from a litter of nine at New York State Zoo at Thompson Park, joined Woodland Park Zoo in October of that year. All three sisters take after their mother with white coats. Wolf sisters Kaya, Doba, and Shila turn 11 years old on April 27. Photo by Dennis Dow/Woodland Park Zoo Gray wolves (Canis lupus) display complex social pack dynamics, and the three sisters at Woodland Park Zoo are no different. Kaya, the dominant female of the group, plays the role of peacemaker and tracks any changes happening around the enclosure. With a reserved personality, she exemplifies quiet strength and stability. Doba plays a subordinate role in the group but is also the most curious. As the least wary of the wolf sisters, she excels at training and is usually the first to investigate new enrichment such...