Earth’s oceans and seas are home to several thousand marine creatures, many small, some gigantic, and some insanely beautiful. However some are so scary and hideous, you could have nightmares just looking at them. There are creatures that evolution forgot and have been roaming our oceans since Jurassic times like the frilled shark and the chimeras that look like alien fishes from another planet. You won’t even believe how there is even a fish classified as the ugliest in the world. Check out this video of the 11 scariest deep-sea creatures that really exist although No 1 will really haunt you.