The American eel’s lifestyle is as elusive as it gets. No one has seen one mate in the Sargasso Sea, the eel’s birthplace. However, we know that after hatching, eels begin their journey to land by following the Antilles Current and Gulf Stream toward the mouths of North American rivers. Elvers (juvenile specimens also known as glass eels) then venture inland, mature, and later return to the ocean to mate, with the entire process ranging from a few months to a few years in duration.