All kinds of creatures.
Caption: This fish is even meaner than it looks. [Nightmares, anyone?] It's the snakehead. The fish are hardy enough to survive up to four days on land, and can migrate up to a quarter mile between bodies of water by wriggling on their fins. National Geographic has dubbed the snakehead "fishzilla," and it is also frequently referred to as the "fish from hell." They can grow to more than 2 feet long and have been found in at least seven states.
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