Harbor swims in Little Ocean, a 13-feet-deep open ocean tank, on March 1, 2017 at the Pittsburgh Zoo and PPG Aquarium in Highland Park. (Haley Nelson/Post-Gazette)
Harbor
Harbor swims in Little Ocean, a 13-feet-deep open ocean tank, on March 1, 2017 at the Pittsburgh Zoo and PPG Aquarium in Highland Park. (Haley Nelson/Post-Gazette)