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The Toco Toucan is the largest of all toucans. Its black body and white throat are overshadowed by its most recognizable trait: a large colorful beak.

The bright orange beak is about 19 cm (8 in.) long – one third of the bird’s total length. But despite its substantial size, the beak weighs less than you may think. Composed of the protein keratin, the structure of beak incorporates many air pockets allowing for a very low mass.

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