The Eel Life Cycle
Clip: Season 31 Episode 10 | 4m 30s
The remarkable lifecycle of the eel, a catadromous fish found all over the globe, in fresh and salt water ecosystems alike. Eels begin life in the ocean before migrating in their larval stage to rivers and streams where they can spend decades before returning to the oceans to spawn. The Mystery of Eels premieres April 17 at 8/7c.