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Features of the bird wing and feather

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(a) The wing is supported by an elongated and modified forelimb with extended fingers. (b) Each feather has a hollow shaft that supports many barbs, which in turn support barbules that interlock with hooks to give the feather its form. (c) The bones of a pelican (Pelicanus occidentalis) are hollow but crisscrossed with a honeycomb structure that provides added strength.
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Guest
12 years ago
I wtaned to spend a minute to thank you for this.
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