Tour the Zoo at dusk and learn about all the ways that accredited zoos are helping animals survive and thrive while taking part in engaging activities that will better help you understand why zoos matter! Aug. 4 and 12, 6:30-9 p.m. (additional dates available). Member cost: $20/person; ages 3 and under, free. Non-Member cost: $25/person; ages 3 and under, free.