environmental

The human brain, with its intricate network of billions of neurons, remains one of the most remarkable and enigmatic structures in the natural world. Its exceptional size, relative to body mass, sets humans apart from other species. Scientists have long been fascinated by the evolutionary forces that shaped the human brain into its current form and have proposed various theories to explain its extraordinary size and complexity. At approximately 1.4 kilograms in weight, the human brain is disproportionately large compared to the brains of other primates. This phenomenon, known as encephalization, is a hallmark of human evolution. One prevailing theory…