Big animals are really scary. A grizzly bear could decapitate you with one swipe. An elephant could trample you flat as a pancake. But it’s the smaller things in life that can really get under your skin– literally.

Every surface in the world and yes, on your body, is teeming with microscopic creatures. You can’t feel them, but they’re there, and they look really freaky close-up. Even an unassuming ant looks more like a horror from the unknown when seen through a microscope.

Check out these pictures and enjoy coming face-to-face with the real monsters of the world.