Zoos typically use high fences, deep moats, or reinforced glass barriers to ensure visitors are safe and hyenas cannot escape. Chiefs' Travis Kelce walks off field downcast after Super Bowl LIX ...

One of his innovations was to use moats instead of cages to enclose animals, a practice still used to this day. Today, visitors can encounter thousands of animals at the zoo, including one of the ...

It's famous for providing a natural environment for its residents without the use of cages – rather, the zoo employs strategically placed moats to separate the animals from the visitors.