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Oiseaux :Chez les pigeons, les glandes salivaires sont toutes rassemblées pour fusionner au niveau d'un seul canal excréteur. Elles sont uniquement muqueuses et hyperdéveloppées. Poissons :Absence de glandes salivaires chez les poissons, remplacées par des cellules caliciformes au niveau de l'épithélium de la langue.
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