Pearson's tuco-tuco
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Pearson's tuco-tuco (Ctenomys pearsoni) is a species of rodent in the family Ctenomyidae.[1] It is endemic to Uruguay, where it is found at elevations below 200 m.[2] This tuco-tuco constructs burrows with multiple openings (an average of 13) containing one to two nests of dried grass; it prefers areas of sandy soil but is somewhat adaptable.[2] It is threatened by loss of habitat to development, agriculture and ranching.[2] Multiple karyotypes have been reported, including 2n = 68–70, FN = 80–88, as well as 2n = 56, FN = 77–79, suggesting the taxon may represent several species.[1] C. dorbignyi appears to be cytogenetically indistinguishable from the 2n = 70 form.[1] The species is named after American zoologist Oliver Payne Pearson.[3][4]
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