In nature, toucans have large and hard beaks that they use to break up food. Despite the size of their beaks, it is actually very light. After researchers investigated the beaks of toucans, they found out that the beak consists of a network of micro scaffolds and thin membranes, which are covered by a hard shell. The structure makes the beaks stronger while leaving space in between the scaffolds makes the density of the beak only a tenth of water.

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