Look: 3 unexpected creatures solve an Arctic food chain mystery

Atlantic cod at the North Pole? It's more likely than you think.

Originally Published: 
Copyright EFICA Consortium

Polar bears, seals, and whales might be the first creatures that come to mind when you think of the Arctic Ocean.

Davie Gan/Moment/Getty Images
But much of the polar ecosystem remains a mystery.

It can be easy to focus on what lives atop the frozen ice sheets, but what swims beneath them is also crucial.

Copyright EFICA Consortium