The brain hidden inside the oldest known Old World monkey skull has been visualized for the first time. The ancient monkey, known as Victoriapithecus, first made headlines in 1997 when its 15 million-year-old skull was discovered on an island in Kenya's Lake Victoria. Now, X-ray imaging reveals that the creature's brain was tiny but surprisingly wrinkled and complex. The findings suggest that brain complexity can evolve before brain size in the primate family tree.
- Nature Communications
- Max Planck Society, University College London, National Science Foundation