Giant river system that existed 40 million years ago discovered deep below Antarctic ice
![Giant river system that existed 40 million years ago discovered deep below Antarctic ice](https://cdn.mos.cms.futurecdn.net/4hiz2MPrtVPJpqh8YuttG.jpg)
"There was this gigantic river system": Researchers find ancient lost world deep beneath Antarctic ice.
"There was this gigantic river system": Researchers find ancient lost world deep beneath Antarctic ice.