Humans Human brains have been mysteriously preserved for thousands of years Intact human brains 12,000 years old or more have been found in unexpected places such as shipwrecks and waterlogged graves, but it is unclear what preserved them NewsFree
Humans Mammoth tusk tool may have been used to make ropes 37,000 years ago Experiments with a replica suggest that a piece of mammoth ivory with carved holes found in a cave in Germany was used by ancient humans to make ropes NewsFree