Eel Spawning Grounds (1:32); Spineless Sea Creatures (2:15); Eels Encounter Whale Sharks (1:31); Glass Eel (1:57); Eels Encounter Perch (1:09); Glass Eel to Elver (1:25); Eels Fighting to Get Upriver (1:58); River Obstacles for Eels (2:01); Elvers' Climbing Abilities (2:06); Adult Eel (2:21); Eel's Hunting Habits (1:09); Eel Habits (1:38); Dangers to Short-Finned Eels (2:34); Fishermen's Eel Catch (1:19); Return to Spawning Grounds (1:30); Incredible Journey's Preview (0:57); Credits: An Eel's Marathon: Incredible Journeys (0:48);