Gerstner, Kerstin, Annette Liesegang, Jean-Michel Hatt, Marcus Clauss, and Cordula Galeffi. “Seasonal Body Mass Changes and Feed Intake in Spectacled Bears (Tremarctos Ornatus) at Zurich Zoo”. Journal of Zoo and Aquarium Research 4, no. 3 (August 2, 2016): 121–126. Accessed November 23, 2024. https://jzar.org/jzar/article/view/181.