This gesture of one bull Elephant inserting his trunk into another bull's mouth, is thought to be a gesture of friendship or comradship. [Serengeti, Tanzania].
It is thought that when an Elephant dawdles with an elephant skull (or portion thereof), it does so knowing that the object once belonged to an elephant. Elephants are thought to be fascinated by their specie's remains. [Chobe NP, Botswana].
Elephant with baby between female's Legs: The mother & its aunts take the youngster (2 mos.) into the water to teach it how to drink with his trunk, to play, mud-bathe, and get used to being in the water. [BIg Tom's, Hwange NP, Zimbabwe].