Consider fire for light vs. warmth vs. cooking vs. ritual vs. safety vs. hunting. One hypothesis: They lit fires to scare out bats to eat, possibly catching th

Consider fire for light vs. warmth vs. cooking vs. ritual vs. safety vs. hunting. One hypothesis: They lit fires to scare out bats to eat, possibly catching them in nets at the cave mouth. After decimating the population, they were forced to push deeper in to the cave system.