Approaching a stationary individual from behind and rubbing the head, ear, shoulder and/or flank against the standing individual. This behavior is used in an affiliative context and occurs most often between closely bonded individuals. Infants and calves may use a stationary elephant (especially the mother) like a tree stump on which to vigorously rub. Calves may also Social-Rub against their mother to Solicit-Food or Solicit-Suckling, as if in appeasement.
As the clip starts matriarch, gf0070, is walking our direction followed by her juvenile male. As he passes a tuskless female, possibly his older sister, he greets her Trunk-to-Mouth and purposefully rubs against her in a Social-Rub. Notice that as he does she Ear-Brushes him. (Gorongosa, Mozambique)
