Monsters. We make creations out of myth and nature, mix and match, try to come up with something just a bit odder, a little more not-quite-right. Something that hasn't been seen before.
So I came up with the Barrow Worm. Nothing too out there. Just an extrapolation of a scavenger, based a bit on reality, a bit on make-believe, and make it big.
My wife - a microbiologist with training as a marine biologist - lent a hand with a quick illustration to make my creepy crawly come to life, including elements from some marine worms.
So I came upon a post a few days back. With this leading bit of nightmare fuel:
Video of the little nasty (complete with somewhat melodramatic narration). Check out the uncompromising jaws vs. the conceptual mouth-parts of the invented critter, above :)
Seems the worms can reach lengths of 3 meters (Although they are only one to two inches in diameter).
Whatever we create - nature will have already come up with a version - occasionally even more extreme than our minds imagine...
And it sounds like I need to make my barrow worm bigger...
Update: IFLScience reposted the critter, as well. And you never know why your fish may be disappearing from your aquarium...