The Geography of Taste Bud

Scientific researchers mapping the geography of the human tongue have finally succeeded in locating and identifying the sensors for sour tastes A Scientists have long known that the surface of the tongue is covered with taste buds: onion- shaped bundles of cells that stand guard for the digestive system. Long before our modern world of supermarkets and restaurants, taste buds served as a crucial tool to maintain the daily existence of our ancestors. The bitter flavour of a wild almond ...