"For the human lineage, footprint sites have been especially important in furthering scientists’ understanding of our own evolutionary journey."

Prehistoric Footprints Provide Rare Snapshot of Ancient Human Group Behavior

"For the human lineage, footprint sites have been especially important in furthering scientists’ understanding of our own evolutionary journey. The iconic 3.66-million-year-old paleontological site of Laetoli in Tanzania, for instance, provided some of the earliest definitive evidence of upright walking in our ancient ancestors."