Russian angler Roman Fedortsov has a practice of pulling ghoulish and unusual animals from the deep sea And his current trawl did not dissatisfy: Fedortsov just recently recorded a strangely “smiling” sea worm.

In a video Fedortsov published on Twitter recently, the animal’s clown-smile turns scary as it relatively changes completely in time with an extraordinary, high-pitched sound included by the angler. (This is not a sound the animal is making.)

” If the animal might yell, it would yell like this,” Fedortsov composed in the post.

Mark Siddall, a manager at the American Museum of Nature’s Department of Invertebrate Zoology, stated he does not see the smiling expression in the video– and what we view as a smile is most likely to do more with the cam angle than the anatomy of the animal. [In Photos: Spooky Deep-Sea Creatures]

Smiling or not, the worm in the video is a polychaete, or marine bristle worm; and more particularly, it’s most likely in the household of nereids, according to Siddall. It’s uncertain what particular types this animal comes from.

Bristle worms are so called due to the fact that they have actually little bristles called chaetae all around their bodies, which assist them promptly move, burrow, tube, crawl and swim, according to the National History Museum of Los Angeles County

What seems the worm’s “head” is, in reality, a retractable vocal cords that, in addition to its jaws, encompasses get food, according to a previous Live Science report When this vocal cords is tucked into the worm’s body, its face looks smiley, a minimum of in the current video.

Polychaetes appear in several shapes and sizes and reside in a broad variety of environments from hydrothermal vents to reef, Live Science formerly reported. So, these smiley, wiggly worms are all over the marine environment, though maybe unfortunately, are not really smiling.

Initially released on Live Science