A penile spine/vibrissa enhancer sequence in missing in modern and extinct humans but is retained in multiple primates with penile spines and sensory vibrissae.
Publication information:
Reno P, McLean C, Hines J, Capellini T, Bejerano, Kingsley D. A penile spine/vibrissa enhancer sequence in missing in modern and extinct humans but is retained in multiple primates with penile spines and sensory vibrissae. PLoS ONE . 2013;8(12):e84258.