The Oldowan tools included, according to the lecture slides, “choppers, scrapers, and pounders" (Stovall 3) and were refined “into the Acheulean tool industry starting around 1.7mya” (Stovall 4). The Middle Stone Age of the paleolithic era, on the other hand, refers to the Mousterian tool tradition that was “named for the cave in Le Moustier, France, where the first samples of these tools were found” (Stovall 31). The Mousterian tools included “more precise and delicate techniques than ESA tools,” which could suggest that they were more advanced and effective than the tools of the Early Stone Age (Stovall 31). Finally, the Last Stone Age refers to blades that “Emerged in South Africa and replaced the Mousterian/MSA tool culture” (Stovall 36). These blades “were attached to wood, bone, antler, or ivory to form composite tools like bows and arrows” (Stovall 36). These changes most likely reflect the development of human intelligence, adaptation, and survival. This is accurate since they evolved from individuals who used simple items made of stone, such as choppers, scrappers, and pounders, to individuals who use bows and arrows, which could be considered as excellent hunting and survival