New study dates Taung Child fossil to between 2.96 and 3.03 million years

Research team rewrites human history

Professor Gabriele Macho from Vrije Universiteit Brussel led the international research group that produced these findings. To determine age, the study examines tooth formation alongside brain and dental development throughout growth by analyzing tooth structure. Fossils of adults once classified as Australopithecus africanus fail to align with the growth path shown by the Taung Child. Distinct variations in how brains developed indicate that several separate hominin species coexisted or appeared one after another within the Sterkfontein region.

Climate shifts drove evolutionary diversity

The group credits these evolutionary shifts to climate changes that occurred millions of years back. Repeated changes in wet and dry cycles reshaped the southern African terrain and separated various populations. As hominins followed expanding and contracting habitats, they diverged and adapted to new pathogens and predators. For thousands of years, this area acted as an active place where different species encountered each other and mixed repeatedly.

Ancient environment was wetter than today

Analysis of fossilized pollen indicates that the Taung Child inhabited a much wetter and forested landscape compared to present-day South Africa. The presence of tree species located hundreds of kilometers northeast suggests that this area was once a lush ancient landscape. Such results dispute straight evolutionary frameworks by highlighting a fluid network in which climate changes repeatedly separated and merged groups.