Trapping was not passive hunting but engineered predation—the systematic placement of mechanical devices that killed or captured animals without requiring hunter’s presence, that multiplied hunting effectiveness by allowing simultaneous operation of multiple traps, that continued working through night and weather when active hunting was impossible. The trap was crystallized knowledge of animal behavior, of mechanical principles, of materials and their properties, the device embodying accumulated understanding in physical form that required no instruction manual because its operation was self-evident once mechanism was understood. The successful trapper possessed not merely technical skill in trap construction but deep knowledge of target species—their habits, their vulnerabilities, their likely movements through landscape—the combination of engineering and ecological understanding determining whether traps produced steady supply of meat and furs or merely wasted effort on empty mechanisms.