The AP found few traces of the bureau's inquiry as it launched its own investigation two months ago. (businessinsider.com)
«Eventually, abandoned structures become completely swallowed up by vegetation and the earth itself, leaving few traces of our human footprint. (treehugger.com)
But just when and how that happened has been elusive, not least because paleontologists thought that the soft, fragile tissues of the central nervous system would leave few traces in the fossil record. (science.sciencemag.org)