In this episode we travel back to ancient time, telling the story of the oceans turbulent beginnings, and its successive incarnations. We trace our own profound connections to the ocean with Tiktaalik, the fish-a-pod that scientists believe is the missing link between the ocean and all limbed creatures, including us.

Original broadcast on television as part of the series The nature of things. Teaching guide available under Additional Info tag. Also available as streaming on Curio.

Chaptered: The ocean is born Oasis of the deep Living fossils From water to land (Tiktaalik).