Final answer:
Placing large balls and toys in animal enclosures has increased engagement and stimulation, enhancing animals' well-being and encouraging natural behaviors.
Step-by-step explanation:
Putting large balls and toys in the enclosures of animals is known to have an increased engagement and stimulation effect on their behavior. This form of environmental enrichment is designed to enhance the animals' physical and psychological well-being by providing stimuli that encourage natural behaviors. By interacting with toys, animals can experience mental stimulation, which prevents boredom and can lead to more active physical behaviors. Moreover, this increase in stimulation often manifests in improved health outcomes and behaviors that are indicative of well-being in these animals.