Footprint fossils are exciting because "They are a real ‘photograph’ on a precise moment of the deep past.” http://www.vox.com/science-and-health/2016/12/15/13955264/laetoli-footprints-fossil-australopithecus …
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Footprint fossils are exciting because "They are a real ‘photograph’ on a precise moment of the deep past.” http://www.vox.com/science-and-health/2016/12/15/13955264/laetoli-footprints-fossil-australopithecus …