User blog comment:Mmpratt99 deviantart/If there was an actual biologically plausible monster that hunted humans, what would it look like?/@comment-35711173-20180604214510

They would look a lot like the animals with a track record for hunting humans.

First, they would follow the general plan for air-breathing vertebrates. They would have four limbs and a head. They would have eyes and a brain.

What hunts humans?

crocodiles and alligators big cats wolves hyenas bears

The problem is that if a species is an active threat to humans we will organize and push them out of our territory. There is a very important reason why wolves avoid humans. We are the apex predator on this planet and while they might get one or two of us we will eventually get them. Only those that avoid man will survive.