Dig! Discover Prehistoric Humans Experience the thrill of discovery with the Dig! Discover Prehistoric Humans kit from Kristal Educational. Unearth replica skulls of the Neanderthal, Australopithecus, and Homo Erectus using the same techniques as real scientists. Use the excavation tools to remove the rocky layers, revealing an ancient treasure. Each kit contains an excavation block, brushes, excavation tool, paint, and ''How to Become a Fossil Collector'' booklet. Additional items may be required. For ages 7 and up - Instruction booklet included