Play not only serves as a bonding process to rekindle relationships among individuals .
Is also a way the species establishes a hierarchy or social pecking order , as well as passive food sharing , which is also considered a common routine in the species .
Play not only serves as a bonding process to rekindle relationships among individuals , but is also a way the species establishes a hierarchy or social pecking order , as well as passive food sharing , which is also considered a common routine in the species .