The beak of a toucan
A toucan's beak looks heavy,but it's mostly made of air-filled structures.This lightweight design helps the bird release heat, working like a natural cooling system.
posted by manish patwari at 10:48 AM
A toucan's beak looks heavy,but it's mostly made of air-filled structures.This lightweight design helps the bird release heat, working like a natural cooling system.
posted by manish patwari at 10:48 AM
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