Woodland Park Zoo became smoke-free on Nov. 1, including the zoo's grounds. Smoking already was prohibited in zoo buildings and near animal exhibits.

"Providing a quality experience for our visitors is a priority for the zoo and smoking on grounds has recently been the number one complaint," said Woodland Park Zoo president and CEO, Deborah Jensen. "Given the statewide public smoking ban in public areas and work places, we expect a positive reaction from the majority of our one million-plus visitors each year."