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May 13, 2021
A replica of the Laetoli footprints discovered in Laetoli, Tanzania; The original footprints were dated to 3.6 million years ago.
In the last couple of centuries, scientists have uncovered ancient fossils, prehistoric artwork, and other clues to the evolutionary origins of humankind. Here are nine of the most revealing discoveries that have changed our understanding of our early ancestors and ourselves.
1. Hominin Footprints Preserved in Volcanic Ash // Laetoli, Tanzania
In 1978, the famous paleoanthropologist Mary Leakey and anthropologist Paul Abell excavated a trail of fossilized footprints in Laetoli, Tanzania. Preserved in volcanic ash and measuring 27 meters (88 feet) long, the 3.6-million-year-old footprint trail was likely left behind by one of the earliest hominin species,