The Grumpackian tortoise is a species of reptile.

The average life span of a Grumpackian tortoise is twelve thousand years, making the animal the longest living organic lifeform in the Milky Way Galaxy. They are also slow animals, as it would take a Grumpackian tortoise fifteen thousand years to circle Deep Space 9's Promenade. (DS9 reference: Legends of the Ferengi)

In 2374, Quark, pinned to the bar counter by Leen's dagger and about to be attacked by Base with a bat'leth, reflected he was as helpless as a Grumpackian tortoise. (DS9 - Millennium novel: The Fall of Terok Nor)

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