The S.F. Zoo’s oldest penguin has a lot riding on her recovery
- Posted on July 10, 2026
- By San Francisco Chronicle
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- 1 min read
The S.F. Zoo’s oldest penguin has a lot riding on her recovery
After Sophia, a Magellanic penguin at the San Francisco Zoo, developed melanoma, veterinarians turned to a dog vaccine in what may be a first for her species.
