"Men are larger, stronger, faster, and more physically aggressive than women, and the degree of sexual dimorphism in these traits rivals that of species with intense male contests. The relatively modest 8% stature dimorphism in humans (Gaulin & Boster, 1985) and a difference of about 15–20% in body mass (Mayhew & Salm, 1990) might suggest that male contests are reduced compared with our closest relatives.
"However, human sex differences in size underestimate sex differences in the traits most relevant to contests. This is partly because women are unique among primates in having copious fat stores (Pond & Mattacks, 1987), perhaps for building the large, fatty brains of human offspring (Lassek & Gaulin, 2008), and as sexual ornamentation (see below).
"When fat-free mass is considered, men are 40% heavier (Lassek & Gaulin, 2009; Mayhew & Salm, 1990) and have 60% more total lean muscle mass than women.
"Men have 80% greater arm muscle mass and 50% more lower body muscle mass (Abe, Kearns, & Fukunaga, 2003). Lassek and Gaulin (2009) note that the sex difference in upper-body muscle mass in humans is similar to the sex difference in fat- free mass in gorillas (Zihlman & MacFarland, 2000), the most sexually dimorphic of all living primates.
"These differences in muscularity translate into large differences in strength and speed. Men have about 90% greater upper-body strength, a difference of approximately three standard deviations (Abe et al., 2003; Lassek & Gaulin, 2009).
The average man is stronger than 99.9% of women (Lassek & Gaulin, 2009).
"Men also have about 65% greater lower body strength (Lassek & Gaulin, 2009; Mayhew & Salm, 1990), over 45% higher vertical leap, and over 22% faster sprint times (Mayhew & Salm, 1990).
"Contrary to earlier claims, sex differences in anaerobic sprint speeds are not narrowing (Cheuvront, Carter, Deruisseau, & Moffatt, 2005; Seiler, De Koning, & Foster, 2007).
Men aren't women. Get over it. If you want to support people who think they are trans, go do that. Elsewhere
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