Mysterious symbols found near footprints shed light on ancient humans’ awareness of dinosaurs

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Mysterious symbols found near footprints shed light on ancient humans’ awareness of dinosaurs

A dashed line indicates petroglyphs made by indigenous people, while a continuous line shows theropod dinosaur footprints. | Leonardo Troiano via CNN Newsource (CNN) — Prehistoric humans in Brazil carved drawings in the rock next to dinosaur footprints, suggesting that they may have found them meaningful or interesting, a new study has found. The rock carvings, which archaeologists call petroglyphs, are at a site called Serrote do Letreiro in Pa…