LS of Lake Tanganyika, TILT DOWN to water. UNDERWATER MS of light streaming through limbs. UNDERWATER MS MCU CU of electric catfish bottom feeding. UNDERWATER MS of electric catfish convulsing. UNDERWATER CU of electric catfish catching fish, eating it. UNDERWATER MS MCU of electric catfish swimming over rocks. UNDERWATER MLS MS of spot-necked otter attacking electric catfish. UNDERWATER MS of otter swimming away. UNDERWATER MS of otters attacking electric catfish, getting jolted. (609)