Gorilla Activities and Social Behavior: Assessing Changes Associated with Absence of Zoo Visitors, Zoo Attendance, Time of Day and Increasing Maturity

In this study we report on associations found between several variables and changes in gorilla behavior. Two groups of gorillas were observed, one was a family group and the other was a bachelor group. The zoo was closed to visitors for two periods during the COVID-19 pandemic which made it possible to document any differences […]

Bilateral carpal valgus deformity in hand-reared cheetah cubs (Acinonyx jubatus)

Abstract Four hand-reared cheetah cubs (Acinonyx jubatus) exhibited progressively severe bilateral valgus deformity of the carpi (CV) during the weaning period. Radiographs of the thoracic limbs suggested normal bone ossification, and serum chemistry was unremarkable. All affected cubs developed CV shortly after the onset of gastroenteritis, which was treated medically, and included use of a […]

Post-release survival of hand-reared tawny owls (Strix Aluco)

The post-release survival of hand-reared tawny owls, Strix aluco, was studied. Hand-rearing did not appear to affect the birds’ instinctive behaviour or post-release survival. The recovery of several pellets confirmed that hunting in this species is an innate process. In terms of animal welfare, hand-reared tawny owls do not appear to be at a disadvantage […]