| 1. | It combined every excellence of which the vocal organ is capable.
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| 2. | No New World vulture possesses a syrinx, the vocal organ of birds.
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| 3. | These sounds are thought to be generated by unique vocal organs found in koalas.
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| 4. | The syrinx is the vocal organ of birds, analogous to the larynx in mammals.
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| 5. | This is due to the muscular anatomy of the main vocal organ, the syrinx.
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| 6. | Type I males are eight times larger in body mass, and have much larger vocal organs.
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| 7. | He was a collector, a taxidermist, and an expert on the vocal organs of birds.
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| 8. | In January 1914, the school hoisted two vocal organs whose sound he can never hear ."
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| 9. | Regularly, the question arises of how one should use one's voice to minimize tiring in the vocal organs.
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| 10. | The syrinx is the sound-producing vocal organ of birds, located at the base of a bird's trachea.
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