This experimental study used life-sized and screen-based 3D male avatars to test how penis size, height, and body shape influence female mate choice and male assessments of rivals. The findings show non-linear female preferences for size and demonstrate that penis size functions as a modest but significant cue in male perceptions of fighting ability, alongside stronger traits such as height and torso shape.
from News Medical Medical Research News Feed https://ift.tt/r0mJNRd
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