This research investigates how sign language experience reshapes the brain’s visual system. MRI studies show expanded hand-processing regions and reorganised face areas in both deaf and hearing signers, even when learning occurs in adulthood. The findings highlight neural plasticity and reveal how visual language transforms perception and brain organisation.

This research investigates how Amazonian butterflies evolve their visual systems to match the light conditions of different rainforest niches. By comparing eye and brain structures across many species, it reveals that evolution repeatedly finds the same sensory solutions, showing that adaptation can be surprisingly predictable and may drive the formation of new species.