Researchers recently announced the discovery of human remains off the coast of Sarasota County, Florida. Radiocarbon testing of wood buried with the bones suggests the remains date back some 7,000 years. It's believed the remains were some of the first Native Americans to settle in Florida. Just 300 feet off the coast of Manasota Key in Sarasota County, Florida, divers made a recent discovery that could unlock centuries of Florida's ancient history.