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Pearson's tuco-tuco
Pearson's tuco-tuco (''Ctenomys pearsoni'') is a species of rodent in the family Ctenomyidae. It is endemic to Uruguay, where it is found at elevations below 200 m.〔 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.〔 It is threatened by loss of habitat to development, agriculture and ranching.〔 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.〔 ''C. dorbignyi'' appears to be cytogenetically indistinguishable from the 2n = 70 form.〔 The species is named after American zoologist Oliver Payne Pearson.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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