LS of Lake Tanganyika (skimming surface). UNDERWATER MCU MS of freshwater pufferfish swimming in limbs. UNDERWATER MS of crab walking amid dead limbs. MS of pufferfish seeking out crab. UNDERWATER MCU of crab scurrying left. UNDERWATER CU MCU of pufferfish mouth/catching crab. UNDERWATER MLS of crab fighting pufferfish in sand. UNDERWATER CU of crab claw attached to pufferfish. UNDERWATER MCU of pufferfish swimming. UNDERWATER MCU of two pufferfish attacking crab. UNDERWATER MCU of pufferfish swimming. MCU of pufferfish eating crab leg. UNDERWATER MS of two pufferfish, TILT UP to river delta (above water). (609)