| Unlike the more than 50 other tuco-tuco species that live mostly solitary lives, C. sociabilis lives in colonies. |
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| The one known exception is the social tuco-tuco, found in Argentina, which lives in colonies. |
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| Ctenomys sp., also known as tuco-tuco, is a solitary subterranean small rodent that inhabits sandy soils in South America. |
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| Like S. fatalis, the tuco-tuco has enlarged forelimb muscles and its forelimbs are loaded heavily, but for different reasons. |
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| The tuco-tuco is a vegetarian rodent very similar in appearance and behaviour to the ground squirrel. |
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