Editing Stone Age (section)

===Tools===
[[Stone tool]]s were made from a variety of stones. For example, [[flint]] and [[chert]] were shaped (or ''[[chipped stone|chipped]]'') for use as cutting tools and [[weapon]]s, while [[basalt]] and [[sandstone]] were used for [[ground stone]] tools, such as [[quern-stone]]s. Wood, bone, [[Exoskeleton|shell]], [[antler]] (deer) and other materials were widely used, as well. During the most recent part of the period, [[sediment]]s (such as [[clay]]) were used to make [[pottery]]. Agriculture was developed and certain animals were [[Domestication|domesticated]] as well.

Some species of non-[[primate]]s are able to use stone tools, such as the [[sea otter]], which breaks [[abalone]] shells with them. [[Primate]]s can both use and manufacture stone tools. This combination of abilities is more marked in [[ape]]s and humans, but only humans, or more generally [[hominin]]s, depend on tool use for survival.<ref>{{harvnb|Barham|Mitchell|2008|p=74}}</ref> The key anatomical and behavioral features required for tool manufacture, which are possessed only by hominins, are the larger thumb and the ability to hold by means of an assortment of grips.<ref>{{harvnb|Barham|Mitchell|2008|p=108}}</ref>