The ocean is full of beauty, but it also hides some of the scariest sea creatures on the planet. Many of these animals lurk far below the ocean's surface, in the dark, high-pressure world of the deep sea.

They’re creepy, deadly, or just plain strange—or sometimes all three at once.

Here’s a lit of sea creatures that would make most people think twice before swimming in unfamiliar waters.

1. Frilled Shark

This deep sea creature looks like an eel with shark teeth. It has a mouth full of backward-facing fangs and a body shaped like it hasn’t evolved in millions of years.

It rarely comes near the surface, but when it does, people mistake it for something from a horror movie.

2. Giant Isopod

Imagine a pill bug the size of a cat. Now imagine it underwater.

Giant isopods live in the dee

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