 These tools were used as spears or darts, or also knives, indicating the importance of hunting, although they also fished and gathered for subsistence.However, the main dependence was on land hunting, mostly of deer, bison, and other large mammals.The culture possibly spoke a Macro-Penutian language (a hypothetical macrofamily which may include Penutian, Uto-Aztecan, and some other language families).