So, something I learnt the other day. So, you know how dinosaurs supposedly can't see you if you stand still? Well that myth is based on real-life lizards/etc and how eyes in general work. So, once my dad starts infodumping, here comes some other cool information. We, humans, can in fact, also not see something unless it's moving. We fixed this by having our eyes constantly shake. And then our brain compensates for us, so we don't have to have shaky vision.
What if aliens don't have this? Like. What if they find out when one of us was looking at something in the distance, and they walk around this thing that's in front of them, and the alien is confused so they bob their head and oh, there's a thing there, but how did the human know that, and then we explain and they're like, horrified.
Humans are apex predators. They can hunt in packs. They can hunt in pairs. They can hunt on their own. They're persistance predators, which is unheard of. They get stronger when they're mad or scared. They have this thing called 'body language' which acts like a type of hivemind, even if they'll claim it isn't. And. They can see you. When you're not moving. They can still see you. If you ever find yourself in a fight against a human, for whatever reason? Run. Run as fast as you can. And hope, pray if you have a religion, that they won't follow.