Posted by: Rebecca Whitham, Editor Beautiful Nina. Photo by Ryan Hawk/Woodland Park Zoo. A great grandmother and the bedrock of our gorilla groups, Nina passed away today at the age of 47. The elderly gorilla had received such tender, specialized care from her keepers in her final geriatric years, but old age caught up with her today. After a normal morning of eating and resting, Nina was not visible in any of her favorite spots in the exhibit later in the morning. When the keepers became concerned and started looking for her, she was spotted, not moving, under a large tree. Nina was taken to our veterinary hospital where animal care and veterinary staff made the humane decision to euthanize her. Nina enjoying a birthday treat earlier this year. Photo by Dennis Dow/Woodland Park Zoo. Earlier this year many of you joined us for a special celebration in honor of Nina, her silverback mate Pete, as well as orangutan twins, Towan and Chinta, all of whom celebrated their