Behind the lemon-yellow door in Singapore's Goodman Arts Centre lies an idiosyncratic collection belonging to a 31-year-old artist and self-professed natural-history lover. Whimsical memorabilia fills the laboratory-like space; life-size replicas of a rottweiler, tortoise and stork greet the visitor. Display cases and various microscopes occupy a center table, while alligator skulls rest on a shelf. An adjacent table is covered with old Singapore postcards, loose photo slides, and wildlife books. Welcome to the curious world of Robert Zhao Renhui.