Shifting baselines in Chesapeake Bay, the immense protein factory -- Why was Chesapeake Bay so productive and how has that productivity changed? -- The spring fishery for shad and river herring was a hectic scramble -- The world's greatest oyster fishery expanded, then crashed -- Diamond-backed terrapins were once pig food, then a gourmet delight, and now a protected species -- Uncontrolled market hunting of waterfowl led to mass slaughter -- Sturgeon, a prehistoric high jumper, fell from memory -- Blue crabs hung on tenaciously -- Have diminished animal abundances remodeled the bay's food webs?