People who lived in the Paleolithic era hunted mammoths, bison, and other furry animals like deer and wolves using stones, traps, and fire. They lived in caves or huts and painted images of animals on walls using charcoal, sand, earth, and other materials they could find. When they got sick, it is unknown what treatments they used. They likely slept on furs or hides on the ground since they did not have beds.