Hundreds of Christmas trees on display for Brookfield Zoo’s Holiday Magic winter wonderland have a new purpose. Some are now being used as animal enrichment for bears, bison, and lions.

The primary aim is to create natural enrichment and festive additions to the zoo animals and their nutrition, seemingly a kind of eco-friendly Christmas celebration with protected wildlife.

Toys, food, and even recycled Christmas trees can be ... At the Smithsonian’s National Zoo, animal care teams provide at least five types of enrichment—foraging, exploration, cognitive ...

The Department of Zoological Research at the National Zoo in Washington, DC houses three pairs of lion ... The animals are all exposed to a variety of enrichment stimuli as part of our in- house ...