Intelligent animals both, crows(ravens?) and wolves have been known to play together in the wild and it has been observed that crows(Ravens?) will sometimes alert wolves to potential prey in order that they might share in the food it would provide.
The Wolf and Ravens - Very few mammals have symbiotic relationships with other animals. One of the few exceptions is the raven and the wolf. Ravens are sometimes known as "wolf-birds" because they form social attachments with wolves.