migratory – adj. moving from one place to another at different times of the year

couple(d) – v. to join (two things) together

wildlife – n. animals living in nature; wild animals

artificial – adj. not natural or real; made, produced or done to seem like something natural

stimulating – adj. exciting or interesting

mitigate – v. to make (something) less severe, harmful or painful

trade-off – n. something that you do not want but must accept in order to have something that you want; a situation in which you must choose between, or balance, two things that are opposite or cannot be had at the same time

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