Clark, B. 1992. Consideration of primate ecology as behavioral enricher. American Association of Zoological Parks and Aquariums/Canadian Association of Zoological Parks and Aquariums (AAZPA/CAZPA) Annual Conference Proceedings, 557 (Abstract).

Review of early enrichment studies with very useful recommendations. Housing should be dynamic and entertaining in structure and function. Largest areas practical should be provided with appropriate perching in various configurations to reduce constant visual contact between animals. ... Perhaps the single most important aspect to enrichment is providing for social interaction.