In terms of activity, environmental enrichment includes which of the following for primates?

Environmental enrichment for primates is aimed at enhancing their well-being and encouraging natural behaviours by stimulating their minds and promoting physical activity. One of the most effective methods of enrichment involves providing activities that challenge primates cognitively and physically.

Puzzle solving, which engages problem-solving skills and cognitive functioning, mimics foraging and exploratory behaviour that primates would naturally exhibit in the wild. Swings offer a physical activity opportunity, allowing primates to climb, swing, and interact with their environment in a way that promotes exercise and social interaction. This combination fulfills both mental and physical enrichment needs, creating a more stimulating and fulfilling environment for the primates.

In contrast, leash walks, food treats, and group housing aspects can enhance the environment, but they do not fully encompass the broad scope and multifaceted approach needed for optimal environmental enrichment. While food is a significant part of enrichment, providing only treats does not address the mental stimulation that puzzle-solving and physical activity from swings do. Similarly, group housing is beneficial for social interaction but does not provide the same level of cognitive challenge. Therefore, the option that integrates both mental challenge and physical activity is the most comprehensive in promoting overall well-being for primates.