What makes us human?

What Makes Us Human?

For centuries, philosophers, scientists, and artists have asked the same question: what is it that truly separates us from other animals? We share 98.7 percent of our DNA with chimpanzees, yet the gap between human civilisation and the animal kingdom appears enormous. The answer, most scientists now agree, lies not in a single quality but in a remarkable combination of abilities that, together, make us uniquely human.

One of the most widely cited answers is language. Unlike the communication systems of other animals, human language is generative — we can produce and understand an infinite number of sentences we have never heard before. A chimpanzee can learn hundreds of symbols, but it cannot ask a question, tell a story, or imagine a future. Language allows us to share knowledge across generations, building what the anthropologist Joseph Henrich calls "the collective brain" — the accumulated wisdom of thousands of years of human experience.

Closely linked to language is symbolic thought — the ability to let one thing represent another. When an ancient human painted a bison on a cave wall thirty thousand years ago, they were not simply recording what they saw. They were creating a symbol, an idea that could exist independently of the animal itself. This capacity for abstract representation is the foundation of art, religion, mathematics, and science. No other species has demonstrated anything close to this ability.

Yet many scientists argue that what truly defines us is not intelligence but empathy. Humans are extraordinarily sensitive to the emotional states of others. We cry at films, feel guilt for actions that harmed no one, and dedicate our lives to strangers we will never meet. This deep capacity for empathy drives our moral behaviour — our sense of right and wrong, justice and injustice. Frans de Waal, a primatologist at Emory University, has shown that chimpanzees and bonobos display rudimentary forms of empathy, but nothing approaching the complexity of human moral thought.

Others point to creativity as the defining human quality. Every known human culture throughout history has produced music, visual art, dance, and storytelling. These are not practical activities — they do not directly help us survive. Yet we cannot stop creating. The philosopher Ellen Dissanayake argues that art-making is a biological need, as fundamental to human life as eating or sleeping. It is our way of making the world meaningful.

Perhaps, however, the most honest answer is that we are human because of everything together. Language, symbolic thought, empathy, creativity, and moral reasoning do not operate separately — they are deeply interconnected. It is the combination of these qualities, expressed differently by every individual and every culture, that makes us who we are. As the primatologist Jane Goodall observed, "You cannot get through a single day without having an impact on the world around you. What you do makes a difference."