You might think that a hornbill would have the most powerful excavation tool of all, but in fact its huge beak is a relatively delicate structure and no use at all as a chisel. (David Attenborough)

You might think that a hornbill would have the most powerful excavation tool of all, but in fact its huge beak is a relatively delicate structure and no use at all as a chisel.

David Attenborough

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beak chisel delicate excavation fact hornbill might structure think tool use

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