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Match	Type	Why
Air sacs are a key adaptive trait of the insect respiratory system.	Academic Article	Why?
Evidence for avian intrathoracic air sacs in a new predatory dinosaur from Argentina.	Academic Article	Why?
Air Sacs	Concept	Why?
A mechanism for frequency modulation in songbirds shared with humans.	Academic Article	Why?
Margoliash, Daniel	Person	Why?
Sereno, Paul	Person	Why?
Westneat, Mark	Person	Why?

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