Rafalian mouse
A Rafalian mouse was a small animal.

In 2372, Odo took the form of a Rafalian mouse as he practiced his shape-shifting, following a complaint he received from Quark, whose quarters were directly below Odo, regarding all the noise he was making as a Takaran wildebeest.

Quark later complained that even as a mouse, he could still hear Odo's tiny little  skittering back and forth across the floor. He added that sometimes he could even hear Odo oozing around up there as well. ()

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Animals