Slow, rhythmic, sustained flapping of the ears as the elephant continues with normal feeding, resting or other activity. This form of ear-flapping is used to help regulate the body temperature. The warmer it is the more consistent and sustained the ear flapping becomes.
References: Poole & Granli 2021. (Full reference list)
This behavior occurs in the following context(s): Foraging & Comfort Technique, Maintenance