In the wild, animals are constantly interacting with plants, shrubs, trees and foliage. It is not only nourishment, but for fun and enrichment. It is entertainment and stimulation and animals love interacting with it.  At the Cincinnati Zoo, they have an unusual method of storing for the winter when no browse is available on the grounds: A browse roundup. Here is a video of people from all over the zoo: Bird House, Commissary, Nocturnal, Nutrition, Veldt,  even Veterinarians came to the “Round Up” to help pack up browse for the winter: