But the closer the bones get to the surface, the quieter a quarry gets. The dinosaur’s remains are more vulnerable during excavation than at any point since the animal died 150 million years ago.

This 39,600-Year-Old Bone May Have ... The flat side of the bone contains puncture marks ... They found that placing hides over a bone and hammering a pointed, chisel-like flint tool through the ...

Neanderthals living in what is now Belgium made a kind of prehistoric Swiss Army Knife from the bones of a cave lion some 130 ...

Found at an archaeological site south of Barcelona, the roughly 11-centimeter-long bone fragment contains 28 punctures scattered across one flat side, with 10 of them aligned and fairly evenly spaced.

Hot nano-chisel used to create artificial bones in a Petri dish. ScienceDaily. Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2021 / 02 / 210209121039.htm.

Throughout history, humans have relied on wood and stone to shelter and protect themselves, and the chisel is one of the best tools to work those materials. Without it, we'd still be banging rocks ...

Liu, X., et al. (2021) Cost and Time Effective Lithography of Reusable Millimeter Size Bone Tissue Replicas With Sub‐15 nm Feature Size on A Biocompatible Polymer.Advanced Functional Materials ...