Antarctica's ice shelves are under attack at their most vulnerable points
The footage, which appears to show a bizarre structure that has a mouth, nose, and eyes
The theory implies that a prehistoric civilization had the technology to navigate major seaways and fairly accurately chart the globe
But don't panic quite yet...
The instruments recorded tremors at two locations between November 2016 and January 2017
"As more heat and water get under the glacier, it melts faster"
The loss of ice there hints "at widespread changes in the ocean"
The wounded man was sent to Chile but is not in a serious condition
The picture was snapped in Antarctica
The weird circular formations spotted from a P–3 research plane flying over the Beaufort Sea last week