Posted by: Gigi Allianic, Communications Sunny the otter (foreground) with her mate, Duncan. Photo by Dennis Dow/Woodland Park Zoo. For the past couple of decades, a female river otter named Salishan enchanted visitors with her energetic diving, gliding and cuteness. Now we say goodbye to the otter keepers fondly called "Sunny." Sunny was humanely euthanized today at the age of 19 following a period of declining health and lethargy. River otters live 8 to 10 years in the wild and 18 to 20 years in zoos. The zoo’s consulting veterinary cardiologist, Dr. Jerry Woodfield with Northwest Cardiology Consultants, diagnosed the otter a year ago with age-related congestive heart failure. She was given a prognosis of three to six months to live but survived another 12 months. Photo by Dennis Dow/Woodland Park Zoo. “Targeted treatment, close monitoring, excellent supportive care, and lots of TLC by our keeper and veterinary staff all contributed to giving Salishan a v