Archaeologists exploring the word's biggest flooded cave in Mexico have discovered ancient human remains at least 9,000 years old and the bones of animals (pictured) who roamed the earth during the last Ice Age. This image shows divers at the underwater burial site
A map showing the location of the Sac Actun cave system, where the remains were found | Google MapsAbout the same age as the woman evidently thrown into the La Brea tar pits in what would become Los Angeles.