Darwin, 1859, pp. 134–139. Tamén mencionado nas páxinas 143, 161, 168, 447 e 490. Barrett P. H. et al. 1981, A concordance to Darwin's Origin of Species first edition, Cornell, Ithaca and London, enumera só catro mencións da frase "uso e desuso".
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Saraga-Babić M, Lehtonen E, Svajger A, Wartiovaara J (1994). "Morphological and immunohistochemical characteristics of axial structures in the transitory human tail". Ann. Anat.176 (3): 277–86. PMID8059973. doi:10.1016/s0940-9602(11)80496-6.
Saraga-Babić M, Lehtonen E, Svajger A, Wartiovaara J (1994). "Morphological and immunohistochemical characteristics of axial structures in the transitory human tail". Ann. Anat.176 (3): 277–86. PMID8059973. doi:10.1016/s0940-9602(11)80496-6.