More than 5,000 feet deep (1637m) at its most profound, with another four-mile-thick layer of sediment further down, the lake's cold, oxygen-rich waters teem with bizarre life-forms.
More than 5,000 feet deep (1637m) at its most profound, with another four-mile-thick layer of sediment further down, the lake's cold, oxygen-rich waters teem with bizarre life-forms.