Due to improved zoo practices, longevity in zoo animals has increased. In comparison to the wild, many species become much older in captivity. Senescence follows a different path in each species and is therefore hard to generalize towards other species. Insights into the process of senescence in animals …

Despite the polar bears’ long history of high popularity in zoo settings, many studies indicate that this wide-ranging species expresses many abnormal repetitive behaviours in captivity, such as stereotypic walking, head swinging and repetitive swimming bouts. This is also the case in the male polar …

Nutrition is an important consideration in zoos, as it affects the physical and mental wellbeing of the animals. To satisfy all aspects of the nutritional needs of animals, diet protocols are carefully designed. Kodiak bears are one of the largest land predators in the world, with males weighing up to …