Reptilian ethology in captivity: Observations of some problems and an evaluation of their aetiology (1990)

Abstract

Discussion of some behavioral problems of reptiles resulting from inadequate captive environments. Many of the behaviour and activities exhibited by captive reptiles suggest that they are unable to cope with their unnatural situations. ... Resistance to disease is higher among specimens in the most naturally ecologically similar environments. Furthermore, diseased individuals from less natural enclosures indicated higher recovery rates when relocated to more natural surroundings, in particular when outdoor environments could be provided.