Scientists map the nose's hidden scent receptor landscape

For generations, the sense of smell was thought to be the one exception to the brain's deep preference for order — a sensory system built on randomness rather than geometry. Two teams of scientists working with mouse noses have now dismantled that assumption, revealing that roughly 1,100 distinct olfactory receptor types each occupy a specific, consistent position in the nasal tissue, suggesting smell may be governed by the same elegant topographic logic that organizes hearing and vision. The discovery, published in Cell, does not yet extend to humans, and the reasons behind this hidden archit