Prehistoric surgery, prehistoric mathematics, the first undisputed dog, and a preserved prehistoric brain.
Between five and ten percent of prehistoric skulls show signs of ancient surgery.
The markings on the Ishango bone may contain some of the earliest evidence of human mathematical thought.
The Heslington Brain is one of the best preserved and oldest human brains in the world.
The Bonn-Oberkassel dog is the oldest animal that is indisputably a dog and not a tame wolf.
For more prehistory trivia, oldest artefacts, and history from before recorded history: