Humans dominate diverse habitats despite physical weakness and sparse innate knowledge

Evidence

Long before the origins of agriculture, the first cities, or industrial technologies, our ancestors spread across the globe, from the arid deserts of Australia to the cold steppe of Siberia, and came to inhabit most of the world’s major land-based ecosystems—more environments than any other terrestrial mammal. Yet, puzzlingly, our kind are physically weak, slow, and not particularly good at climbing trees. Any adult chimp can readily overpower us, and any big cat can easily run us down, though we are oddly good at long-distance running and fast, accurate throwing. Our guts are particularly poor at detoxifying poisonous plants, yet most of us cannot readily distinguish the poisonous ones from the edible ones. We are dependent on eating cooked food, though we don’t innately know how to make fire or cook. Compared to other mammals of our size and diet, our colons are too short, stomachs too small, and teeth too petite. Our infants are born fat and dangerously premature, with skulls that have not yet fused. Unlike other apes, females of our kind remain continuously sexually receptive throughout their monthly cycle and cease reproduction (menopause) long before they die. Perhaps most surprising of all is that despite our oversized brains, our kind are not that bright, at least not innately smart enough to explain the immense success of our species. — Joseph Henrich, The Secret of Our Success, 37

Categorization

• XREF: This framing is the opening puzzle of the whole cumulative-culture argument, setting up how the rest of the book explains the gap the reader is tracking. — connects to: Human survival competence depends on inherited knowledge, not innate wit alone — Joseph Henrich, The Secret of Our Success: How Culture…, 41; Human domination of nature increased our isolation from other species — Jenny Odell, How to Do Nothing: Resisting the…, 486; Survival in unfamiliar environments requires local ecological knowledge, not just provisions — Joseph Henrich, The Secret of Our Success: How Culture…, 120 (+5 more)
• QUESTION: Worth later checking how Henrich quantifies the divide between innate human ability and the cultural inheritance that substitutes for it, to anchor the conformist-bias account that comes later.

Broader Connections

• The physically weaker dominate nature by deliberate adaptation rather than strength #expands (0.92)
• Individual intelligence alone cannot sustain human survival without cumulative cultural knowledge #corroborates (0.90) — Joseph Henrich, The Secret of Our Success, 135
• Cultural learning skills drove rapid human adaptation across all habitats #expands (0.88) — Norenzayan, Ara, Big gods - how religion transformed…, 125
• Human domination of nature increased our isolation from other species #expands (0.80) — Jenny Odell, How to Do Nothing, 486
• Survival in unfamiliar environments requires local ecological knowledge, not just provisions #expands (0.75) — Joseph Henrich, The Secret of Our Success, 120
• Human societies vary widely, supporting a potentialist view of nature #corroborates (0.72)