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Pulmonary air-sac system in a bird.a, Latex injection (blue) of the... | Download Scientific Diagram
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Animal biology. Zoology; Biology. CLASS AVE3 407 The lungs of birds are not capable of dilation since the thoracic skeleton forms a rigid framework. Breathing is allowed by the presence of
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Multimedia Gallery - Pulmonary air-sac systems of dinosaurs and birds exhibit striking similarities | NSF - National Science Foundation
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