For hundreds of years, Andean people recorded information by tying knots into long cords. Will we ever be able to read them?

What looked like a small hole in a cliff turned out to be the entrance to a massive borehole cave. In this video, we take you through the discovery, the first descent, and the jaw-dropping scale of ...

But, there’s also an extensive underwater cave system there and now an underwater research team is giving us our first look at what lies below the surface. Underwater cave at Weeki Wachee ...

When a cave explorer stumbled across what she thought was trash, she couldn't believe it when she realised what she'd ...

Guided by ultrasound, the abortionist grabs the baby's leg with forceps. The baby's leg is pulled out into the birth canal. The abortionist delivers the baby's entire body, except for the head.