The Los Angeles Zoo goes wild with the return of Boo at the L.A. Zoo, presented by 99 Cents Only Stores, featuring Halloween decor, a spooky stroll with photo ops, an extinct-animal graveyard, and other weird and wacky animal facts and educational opportunities. Weekends include special animal feedings, merry-not-scary entertainment, take-home crafts, and, during the last two weekends in October, trick-or-treat candy stations scattered throughout the Zoo grounds.