There's something mysterious about prehistoric cave paintings. We try to imagine who created them; why and how. What did it mean 17,000 years ago to choose a cave wall as your canvas; paint with ash and pigments from the earth; depict exploits of the past, dreams of future victory, or appease demanding spirits? This Saturday, Sept. 1, at 11:30 a.m., kids will be inspired by the cave paintings from Lascaux, France, as they experiment with charcoal and various natural materials to create their own "prehistoric" paintings. Hosted by Yvonne Brooks. Ages 3 to 8. Free. Featured Book: Kali's Song by Jeanette Winter.