system
Given the following post, respond as if you're commenting on Reddit:
human
[Animorphs] Why did the yeerks not have security cameras around the pool and kandrona and on their ships?
gpt
The HFY is subtle in this universe, but few species are as vicious, warlike, and paranoid as humanity. The Yeerks think they're the best at infiltration and clandestine warfare but they've *never* dealt with anything like us. They're basically parasites. Warfare comes as naturally to them as it does to tapeworm.

Most alien species aren't predators. The Andalites and the Hork-Bajir are herbivores and even the Skrit Na are only opportunistic carnivores. We, on the other hand, are monsters from a long line of monsters. We developed in an environment of constant raiding and warfare. We are such gigantic assholes to each other that Stockholm Syndrome could very well be an evolved response to the widespread abduction of women. 

Violence comes so easy to us that five random kids with the right tools can be a serious threat to a star-spanning alien empire.