| 21. | Olfactory navigation has been suggested as a possible mechanism in pigeons.
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| 22. | However, it is not clear how olfactory cues are used.
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| 23. | :It's an essential property of the olfactory system.
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| 24. | Avian olfactory signals are often overlooked as a form of communication.
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| 25. | An effect caused by copper is impacting the salmon olfactory system.
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| 26. | The olfactory bulb has been said to be the olfactory thalamus.
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| 27. | The olfactory bulb has been said to be the olfactory thalamus.
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| 28. | The longer the nose, the more room for olfactory receptors.
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| 29. | This has led to males developing a very acute olfactory sense.
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| 30. | Without stimulation, Buck says, olfactory neurons will die.
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