When Tyrannicus' promotional campaign for Allegra's concert becomes too boisterous to tolerate, Livingstone calls out for "Quiet!"-and he gets it, in spades, when a Corespore blasts off, rendering Animalians incapable of speech. The animals can make nothing but feral sounds. Alex and Zoe must recover the Corespore in hopes of restoring verbal communication to Animalia. This episode establishes that language in Animalia began with LAUGHTER.