Greater human phenotypic diversity vs other species

No.13289806 ViewReplyOriginalReport
How does /sci/ explain this? The physical differences between individual American Goldfinches, for example, are relatively minor in comparison to those between individual humans. Two human brothers will look far more different from one another than two goldfinches born thousands of miles apart. Are we simply conditioned to notice differences in human phenotype, or is there more genetic diversity in our species relative to others?