WHY do animals also need variety?

As observations show, many animals feel frustrated when there is a prolonged lack of new information and access to things to play with. Their behavior resembles that of a bored human.

The ability of animals to be homesick is also evidenced by the fact that even adults spend a lot of time playing and suffer when deprived of this opportunity.

Such behavior is most noticeable in monkeys, raptors, as well as in a number of birds, such as cranes and parrots.

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