Age-related changes in urinary testosterone levels suggest differences in puberty onset and divergent life history strategies in bonobos and chimpanzees
Testing the Effect of Medical Positive Reinforcement Training on Salivary Cortisol Levels in Bonobos and Orangutans
Age-related changes in Thyroid hormone levels of bonobos and chimpanzees indicate heterochrony in development
A survey of foot problems, stereotypic behaviour and floor type in Asian elephants (Elephas maximus) in European zoos
Group Size of a Permanent Large Group of Agile Mangabeys (Cercocebus agilis) at Bai Hokou, Central African Republic.
