Sloth
The modern sloth's lineage traces back 64 million years, predating the extinction of the dinosaurs' immediate aftermath. Their ancestors included Megatherium, ground sloths the size of elephants that roamed the Americas until roughly 10,000 years ago. The contemporary sloth has survived precisely by demanding almost nothing from its environment, consuming approximately 160 grams of leaves daily and requiring minimal territory. This is survival through radical non-ambition.
Great Wall of China
Construction began during the 7th century BC under various warring states, with the most famous sections built during the Ming Dynasty (1368-1644 AD). The structure has endured earthquakes, invasions, erosion, and centuries of neglect. Approximately 30% of the Ming-era wall has disappeared entirely, with sections crumbling at an alarming rate. UNESCO estimates that without intervention, large portions may vanish within decades. Stone and mortar, it transpires, are rather less patient than fur and claws.
VERDICT
When comparing 64 million years of continuous existence against roughly 2,700 years of gradual disintegration, the mathematics prove unambiguous. The sloth's strategy of demanding almost nothing has outlasted the wall's strategy of demanding everything. The tortoise may beat the hare, but the sloth apparently beats the fortification.