It may be asked how the Osteologist can distinguish the tame from the wild races of the same species by their skeletons alone.
"The Antiquity of Man"
Charles Lyell
The mere Osteologist, however accurately he might put the resemblances and differences into words, if he lacked the artistic visualising faculty, might be hopelessly incompetent to perform any such feat; lost in details, it might not even occur to him that it was possible; or, still more probably, the habit of looking for differences might impair the perception of resemblances.
"Aphorisms and Reflections from the works of T. H. Huxley"
Thomas Henry Huxley