Researchers Unearth 10,600-Yr-Old Spirit Cave Mummy’, Reveal Modern Humans Came to America Earlier Than Thought The genome ...

A 1.4 million-year-old fossil jaw belongs to a previously unknown human relative from southern Africa, a new study finds.

When Floyd Collins ventured into Sand Cave in Kentucky on Jan. 30, 1925, he was searching for the next big attraction. But he never made it out alive.