It was the last day in the Serengeti, for now, and we were driving on the large Serengeti plains towards the exit. Far away in the distance I spotted a single bull elephant walking slowly and peacefully in the same direction as us. It was a mesmerizing sight.

His silhouette was like an isolated island on the horizon of the flat grassy plains. His tusks were huge. He was not in a hurry - just walking with a steady, calm pace. But something about his entire appearance radiated purpose. 

He was determined. 

He was walking in solitude but he is not alone. He comes from a herd - and he is rarely without company for long.

Elephant herds are led by a matriarch. A mother, or a grandmother, or maybe a great-grandmother. And the herd consists of sisters, daughters, aunts, and cousins and their kids and teenagers. Female elephants remain with their mother, sisters, and aunts in the same matriarchal family group for their entire lives.

Once a male elephant reaches maturity, he will leave the herd and either travel alone as a solitary bull or form a group with other males. The group offers companionship and safety, and older bull elephants often act as leaders and mentors within these male groups, teaching the younger elephants survival and social skills.

But leaving the herd does not mean forgetting the family. Elephants have extraordinary, decades-long social memories. Even after years apart, male elephants can recognize and remember members of their birth family and other elephants through sight, scent, touch, and low-frequency calls. This long-term recognition helps them navigate social and mating dynamics.

This majestic bull might be wandering in solitude, but he will always remember his mother, sisters, and aunts in the herd he left behind.

Elephants can communicate across very large distances, over many kilometers. An elephant can produce a deep rumble called an infrasonic call - a low-frequency sound that humans cannot hear but that can travel large distances. Elephants also create low-frequency seismic waves by striking the ground with their feet or sending low rumble energy into the earth that can be picked up by other elephants miles away. This way they can communicate across huge distances, pick up calls and warnings, or notice distant thunder.

The next day we witnessed one of those groups, or gatherings, of bull elephants inside the Ngorongoro crater. A large group of male elephants walking together, hanging out, grazing, and play-fighting.

I’d like to believe that the bull we sighted the day before was one of them. That he had been walking in solitude across those vast Serengeti plains, calm but determined, knowing that his friends were already there, or on their way, and that he would soon meet them all inside the Ngorongoro crater.