On Sunday's observance of Father's Day, the Pittsburgh Zoo & PPG Aquarium, in conjunction with the National Fatherhood Initiative, will search the zoo between noon and 3 p.m. for fathers positively interacting with their children.

Each Father's Day weekend, the initiative runs the Golden Dads program across the country, using volunteers to find and reward Golden Dads in action. Winners receive a reward kit to encourage them to continue to play an important role in their children's lives.