This deep-sea polar worm looks like it can't decide if it's dressed for a glitzy party or a gruesome massacre.

Where it lives: Below 1,640 (500 meters) deep in Antarctica's Southern Ocean What it eats: Unknown ... These scales look a bit like human teeth, adding to the worms' dazzling-yet-gruesome appearance.

He tweeted about it later on Wednesday, writing that he'll "eat 5 more brain worms and still beat" Trump ... This particular tapeworm can infect humans at two different stages of its life cycle.

So we obviously, were racing around to look at the worm, try and identify it and work ... Sanjaya Senanayake 0:53 So this is the first documented human infection with this parasite.

But what are they? And why did they suddenly appear en masse? The animals are not aliens, but giant pile worms, large marine worms that are typically found on the seafloor, but will swarm at the ...