The Primal Peacock: Why Size Mattered in the Stone Age
In 1967, Desmond Morris dropped a literary bombshell that made the swinging sixties feel a little more... anatomical. In The Naked Ape, he pointed out a biological fact that wounded the ego of every other primate on the planet: relative to body size, the human male possesses the largest penis of any living primate. While gorillas are massive silverbacks capable of snapping trees, their "equipment" is—to put it politely—minimalist. Morris argued this wasn't an accident of plumbing, but a flamboyant result of sexual selection.
From a business model perspective, the human penis evolved as a high-visibility marketing campaign. In the dense social structures of early humans, where we lost our body hair and started walking upright, the organ became a "self-advertising" signal. It wasn't just about delivery; it was about the display. In the darker, more cynical corridors of human nature, this suggests that even before we invented sports cars or designer watches, the male of the species was already obsessed with "visual impact" to win over a mate.
Critics, of course, have spent decades debating if Morris was over-reading the data. After all, sexual selection often leads to "runaway" traits that serve no survival purpose—like the peacock’s tail, which is beautiful but makes it easier for tigers to eat you. Historically, this reminds us that humans are the only animals capable of turning a basic biological necessity into a competitive status symbol. Morris's 1967 revelation shocked the public not because it was false, but because it stripped away the veneer of "civilized" romance and replaced it with the raw, competitive reality of the primate troop.
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