The series follows a trio of classroom pets who use teamwork to help animals in need. Most of the characters' dialogue is sung in the style of a sung-through musical. The first long-form episode debuted on March 3, 2006, as part of the Nick Jr. block on Nickelodeon. The series ran for three seasons and 62 episodes. A reboot series, Wonder Pets: In The City was released on Apple TV+ on December 13, 2024.