Members of Lexington Fire and Rescue freed eight young ducklings from a storm drain early Tuesday morning. The firefighters responded to an anonymous call that ducklings were trapped below a storm grate near the intersection of North Main and Garden Court. When the crew arrived, they noticed a mother duck circling the storm grate. Eight ducklings were then found trapped below it. The firefighters worked quickly to remove the grate, free the ducklings, and reunite the family. Which author's purpose is suggested by the text?