What features made the Bronx Zoo’s World of Darkness an important nocturnal-animal exhibit?

The Bronx Zoo’s World of Darkness, which opened in 1969, was significant because it was the world’s first major zoo exhibit specifically designed to house and display nocturnal animals.1

By utilizing a specially constructed building, the exhibit allowed visitors to observe the behaviors of animals that are typically active only at night, providing a unique educational experience that was not previously possible in standard wildlife exhibitions.1