Did improvement of tools in the Mesolithic era include bones?

Yes, during the Mesolithic era, the improvement of tools included the use of bones. People began crafting tools from animal bones, which were shaped into items like needles, fish hooks, and harpoons, enhancing their ability to hunt and gather. This innovation represented a significant advancement in tool-making, reflecting the adaptation to changing environments and lifestyles in this transitional period between the Paleolithic and Neolithic eras.