Episode: "The Trouble With Tribbles"
Description: The most insidious invaders ever to threaten the Enterprise, these fuzzy little low-budget infiltrators first win Lt. Uhura’s affections, prompting her to take one aboard. From there they sneak into the air vents, storm the bridge and drink Kirk’s coffee. Only one thing keeps them from taking over the Enterprise and from there, the galaxy: No hands, man.
Powers: Eating, reproducing, making Klingons edgy.
Weaknesses: Poisoned grain, hammers (presumably).
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