A smaller sign beneath the larger, multiheaded one you first noted, catches your attention. It's been handpainted, and appears to have been made of posterboard slid onto a thin wooden stake.
"CRYPTOZOOLOGY EXHIBIT" it reads, "NIGHTTIME ONLY SHOWS!".
You're intrigued. You remember from somewhere that Cryptozoology has to do with monsters and legends, creatures that science has yet to really prove concretely that exist. Things like vampires, werewolves, and Bigfoot, to name a few.
Your curiousity has been picqued. Will you follow the arrow on the sign? It seems to be leading you down the same path as the "North American Wildlife" branch.