Goodbye, Nazca

It is with great sadness that we announce the passing of Nazca, our male maned wolf and the father of the four puppies recently born here at the GSC. Nazca was just shy of his 11th birthday and was considered a senior, as the lifespan of maned wolves in captivity is typically 10 – 14 years of age.

For the last few weeks, Nazca had exhibited a cough that caused our animal care team concern. Over the weekend, staff observed some swelling in his neck. In an attempt to identify the cause, he was brought to our on-site animal hospital where our veterinary team performed an exam. Crackles, wheezing, and wet sounds were observed when listening to his lungs. An ultrasound-guided aspiration biopsy revealed concerning cells. Fluid was found in his chest cavity.

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Due to his age, the advanced state of the illness, and his rapidly declining quality of life, the decision was made to humanely euthanize him. Although the results of a necropsy are pending, Veterinarian Dr. Sam Young says Nazca had an advanced lung cancer. His mate, Anaheim, was given the opportunity to say goodbye and her behavior will be closely monitored in the weeks ahead. Decisions like this are not taken lightly and are vetted through a committee of GSC experts trained in animal welfare. A number of factors are evaluated through our welfare process and include questions such as “how much pain do we believe the animal is in?”, “what is their likelihood of recovery?”, and “how progressive is the disease process? Can we even treat it?”

Nazca will be remembered by many of us at the GSC not just as a truly magnificent animal, but also as a fantastic father. During his time with us, he sired nine beautiful pups through the Association of Zoos and Aquariums’ (AZA) Species Survival Plan (SSP). He and his first mate, Lana, had three pups in February of 2011. He was then recommended to breed with Anaheim, who has been his mate since 2015. Together, they produced two successful litters, a boy and girl in March of 2016, and the four pups (two males and two females) born in December 2018.

Breeding recommendations are made based on the best genetic match-ups to ensure a healthy and sustainable population throughout AZA institutions. Nazca carried the most valuable genetics for both of his recommended pairings. His involvement in the SSP has assured that his genes would be passed on to future generations (as evident by last year’s successful birth from one of his daughters). Our staff is comforted greatly by the knowledge that his legacy will continue to live on even though he is no longer with us.

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The maned wolf exhibit has been closed since early December in preparation for the puppies’ birth. The exhibit is scheduled to reopen February 11, when the puppies are a little older. We are grateful for all of your thoughts and prayers as we mourn the loss of our beloved Nazca.

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