A. Johann

Indication of higher salivary α‐amylase expression in hamadryas baboons and geladas compared to chimpanzees and humans

K. Südekum, M. Mau, T. Kaiser, 2010, Journal of medical primatology.

Saliva of the graminivorous Theropithecus gelada lacks proline‐rich proteins and tannin‐binding capacity

K. Südekum, M. Mau, T. Kaiser, 2009, American journal of primatology.

A ‘Checklist’ of Possible Items for Prosimian Husbandry Manuals and Research

E. Zimmermann, B. Meier, A. Johann, 1998, Folia Primatologica.

Morphological and physiological aspects of digestive processes in the graminivorous primate Theropithecus gelada—a preliminary study

K. Südekum, J. Hummel, M. Mau, 2011, American journal of primatology.

Maintenance of the Gelada baboon Theropithecus gelada at the Rheine Zoo

A. Johann, W. Salzert, 1992 .

Interaction between food, saliva, and tooth surface

K. Südekum, M. Mau, T. Kaiser, 2020 .

Stone handling in geladas (Theropithecus gelada): implications for spontaneous drawing-like activity as a playful behavior

E. Palagi, M. Huffman, A. Johann, 2022, Journal of Ethology.