Female elephant herds are made up of related females and their young. The herd is led by the matriarch, which is usually the oldest female of the group. Males leave the group when they become sexually mature (typically at 12–13 years of age), and form their own groups. The matriarch sets the activities of the herd—when she moves, other elephants follow in a line; when she stops to eat, they spread out to eat; and when the herd is threatened, the elephants cluster around the matriarch and follow her lead. When herds move across an open area in daylight, individuals typically bunch together and move quickly until they reach cover.
The documents supporting the classroom implementation using this image as an anchoring phenomenon can be found with the Benefits of Schools image here.
Jeff Trollip, Gorongosa National Park