Sumatran rhinoceroses are not known for playful behavior in the same way that some other animals, like young mammals or certain primates, engage in play. They are generally solitary and elusive creatures. Most of their activities are related to finding food, avoiding threats, and reproduction. Their behavior is primarily driven by survival instincts and the need to navigate their dense forest habitats.
That said, young Sumatran rhino calves may engage in some playful behavior, similar to how other young animals might play. Playful behavior in young rhinos can include running, mock charging, and sometimes interacting with their environment or mother in a playful manner. However, these playful moments are relatively rare, and most of their time is spent on more practical activities for survival.