Does anyone have images of (biologically-related) brothers, and photos of sisters, in the
age-range of 18-25 at the time that the photos were taken? (Colour or black and white are
both fine; preferably full face or near-full face.). We're doing an experiment on kin
recognition and can't find enough siblings!
Thanks in anticipation,
Dr. Graham Hole,
School of Psychology,
University of Sussex.
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