Food puzzle enrichment engages zoo animals mentally and physically, reducing boredom and stereotypic behaviour. It is one of the most impactful and cost-effective welfare interventions available to zoos.
One of the most damaging aspects of captive animal welfare is the elimination of foraging. Wild animals may spend 60-80% of waking hours finding, processing, and consuming food — in captivity, food is typically delivered in a bowl or tray in minutes. This leaves large portions of the day with no natural behavioural outlet, driving stereotypic behaviour and psychological deterioration. Food puzzles restore the cognitive and physical engagement of foraging by making animals work to access their food. Even simple modifications — freezing food in ice blocks, hiding food in substrates, using puzzle feeders that require manipulation — dramatically increase behavioural diversity and reduce inactive time. The welfare return on investment from enrichment programmes is very high relative to cost.