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Chapter 96 Fist walk life and death
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... do birds breathe?
Birds usually use their unique air sacs to exchange gas with the lungs to achieve the so-called "double breathing".
Its special respiratory system is manifested in that it has very developed air sacs and trachea, and the air sacs are widely distributed between the internal organs, bone cavities and muscles, which enables the birds to have oxygen-rich air flow in the lungs during inhalation and exhalation. However, the lobes of the lungs can exchange gas during in ...
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