10 Real Life Sea Monsters

Giant Isopod

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giant isopod slideshow photo
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This giant isopod is the kind of creature that horror movies are made of -- at least when it comes to his size (2.5 feet), segmented shell (which allows him to bend roll into a ball without losing any protection), and compound eyes (comprising 4,000 facets that let it track fast movements with ease).

Isopods are deep-sea dwellers that scavenge dead saline for food. But it's not as dangerous as you might think: According to Popular Science, isopods are harmless -- and since most of them live below 1,200 feet, you're not likely to run into one while swimming.

In Taiwan, however, you're apt to find them on the menu.

Photo via TreeHugger