A new analysis of wind-driven Atlantic currents may help scientists solve a mysterious decline in eel numbers.
These secretive creatures are born in the Sargasso sea but migrate to Europe where they spend most of their lives.
But unexplained fluctuations in the numbers of those traversing the ocean have thwarted efforts to save the species.
Now researchers believe they have built a computer model that will accurately predict the level of migration.
The research is published in the journal, Current Biology.