Gender-Based Variation in Morphogenetic Traits in Sirte, Libya: Arm-Folding Differences

Abstract

This study investigates gender-based variations in human morphogenetic traits within the Sirte area of Libya, using data from 373 females and 255 males. The studied variables include attached earlobe, free earlobe, square earlobe, tapering earlobe, tongue rolling, tongue folding, widow's peak, straight hairline, right cheek, left cheek, right clasping, left clasping, right writing, and left writing. The study found no significant sex differences for most variables. However, it highlights statistically significant differences in arm-folding patterns: left arm folding was 45% in males and 55% in females (P = 0.012), while right arm folding was 56% in males and 44% in females (P = 0.012). These findings contribute to the understanding of population-specific morphogenetic trait distributions and highlight potential sex-linked expressions in certain physical characteristics.