(CNN) — During an expedition to search for a famed shipwreck, researchers discovered something unexpected: striking geometric patterns on the floor of Antarctica’s western Weddell Sea created by fish.

"She was doomed, no ship built by human hands could have withstood the strain."When polar explorer Ernest Shackleton wrote this journal entry on October 27, 1915, his dreams of reaching Antarctica had ...

A researcher believes he's cracked the mystery behind the sinking of Sir Ernest Shackleton's legendary ship Endurance. Part of one of the most famous Antarctic expeditions in history, Endurance set ...

Once considered Earth's last frontiers, the Arctic and Antarctic regions tested human limits like no other. The Endurance expedition of 1915 remains one of history's greatest survival stories, an ...