Effective zoo enrichment must address the novelty problem; animals rapidly habituate to static enrichment, requiring rotational programmes to maintain behavioural and welfare benefits.
The habituation problem in zoo enrichment is well-established: animals that are initially highly engaged with a novel object lose interest rapidly as it becomes familiar. This creates a practical challenge for enrichment programmes that provide static objects without rotation. The solution involves systematic rotation of enrichment items so that familiar objects provide novelty through absence, and introduction of genuinely new stimuli at intervals sufficient to prevent habituation. Scent enrichment is particularly effective because scent cannot be fully explored by an animal and retains informational value even after initial investigation. Social enrichment through controlled introduction to novel individuals provides perhaps the most sustained complex engagement.