Unlike Xenomorphs, which were created to be the perfect killing machines, Predators have trained for centuries to be the best hunters in the galaxy. As a result, they have learned various techniques and honed their technology to seize victims from all across the universe. So considering their extensive track record, their constant visits to Earth make next to no sense.

The Predators' return to the same planet centuries at a time seems counterproductive to their own advancements. When they could be hunting bigger and stronger game, they continue to return to beings that have no interest in them and only want to live without fear. So, why does the Predator continue to come back to Earth and lose almost every time they visit?

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Predators and Humans Constantly Test Each Other

The lead character from Prey prepares to fire an arrow

Part of being the best hunter means learning and understanding one's prey. In doing so, the hunter has the chance to outmatch their target and, upon their victory, prove they are better. Since the Predators have seemingly lost to humans since at least the 1800s, Earth has been a difficult hunting ground for them, constantly pushing them to the limit. Since humanity tends to overcome any obstacle, they're the perfect targets for a Predator to test their skills on while giving them the chance to refine their tactics.

If the Predators are going to use humans to challenge themselves, then equally mankind must get tested as well. Over the course of evolution, humanity has developed new and more advanced ways to kill and, in turn, showcased new ways to evade death. When pitted against such a deadly alien species as the Predators, humanity must use everything they have learned if they are to prove they are still the Predators' greatest enemies. That gets best shown through Dutch's final stand in the first Predator film when he outsmarts the creature with nothing but his environment.

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Predators Find Enjoyment In Humanity

A Predator lingers behind Adrien Brody's Royce

Perhaps the most surprising reason why Predators continue to inhabit Earth is that they actually have a morbid affinity for humans. Whether it's their persistence or ingenuity, they continue to return and hunt them because they're entertaining. It may be a game of life or death, but humanity has always showcased unpredictability, which makes them the ultimate game. Predators possibly undergo the thrill of the hunt when chasing after their human prey, experiencing a twisted rush of excitement as they ensnare their next victims.

As Predators demonstrated, the titular alien race had enough interest in humans to kidnap and take them to their massive game preserve planet, where they put them in all kinds of combat situations. Among the species which they abducted, the Predators mostly kidnaped humans. With no canon reason given as to why, there's the possibility that they did so because no one human is alike, and their skills at hunting and killing are varied enough to rival their own. But no matter the reason Predators return to Earth, humans have proven to be some of the strongest beings in the galaxy.