Before humans came to the Presidio, large mammals like saber-tooth cats, Columbian mammoths, and dire wolves lived there. Drop in and make your own Ice Age animal mask. Free, registration preferred. Free, 415-561-5300, presidioofficersclub.org
Sat.–Sun., Jan. 14– 15, 11 a.m.
Presidio Officers’ Club (50 Moraga Ave.)
