Footprints in Stone- Part 1
It is generally recognized that the rocks have left us a record of human activity in the past. But in 1976, the finding of the Laetoli footprints in Africa literally put evolution back on the map. Mary Leaky discovered 70 human footprints in stone in Tanzania known as the Laetoli tracks. The Laetoli prints, dated to 3.5–3.7 million years ago, also chall…




