Origin of life in the vents -- Garden of the ediacara 00 Wonders of the burgess shale -- Cambrian explosion -- Living fossils -- Here come the mollusks -- Brachiopods -- Cephalopods -- Jawless fishes -- Lungfishes -- Coelacanths -- Pisces triumphant -- Evolution of bioluminescence -- Sharks -- Marine reptiles -- Encased in armor plate -- Sea snakes -- Crocodilians -- Birds that swim -- Sea cows -- Sea weasels -- Flippers for feet -- Desmostylians -- Cetaceans -- Living whales -- Aquatic ape

1. Marine animals -- Evolution
2. Life -- Origin