Case study: Seasonal diets for brown bears (Ursus arctos) at Brookfield Zoo: successful implementation led to reduced weight and improved behavior

From 1995 – 2008 the brown bears (Ursus arctos) at Brookfield Zoo were fed a standard diet consisting of carnivore meat products, fish (seasonally), dog food, apples, carrots, lettuce, bread, and a small assortment of fruit as treats. The diet increased or decreased in amount based on the bears’ motivation for food (i.e., by season), but the diet composition was...