 Internal evidence in "The Bones of Zora" confirms the relative sequence of the stories.Yuruzh may have been the unnamed tailed Krishnan resident at an Earthly scientific institute in de Camp's earlier "Viagens" story "The Colorful Character".Another instance of de Camp's use of a "lower" species raised to intelligence by scientific means can be found in his earlier short story "The Blue Giraffe" (1939).