Huffington Post   First Posted: 03/18/10 06:12 AM ET   Updated: 05/25/11 03:20 PM ET

We love to think of ourselves as kings and queens of the jungle, but there are many dangerous and deadly animals out there who kill humans -- intentionally or not. Take a peek at these predators, many of whom have been largely misunderstood and have dangerous encounters with people because we've driven out their prey.

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Portuguese Man-Of-War
The Portuguese Man-Of-War is considered the world's most frightening jellyfish... however, this animal is not a jellyfish at all! It's actually a siphonophore - a colony of organisms working together. Regardless of what it is, the Man-Of-War's tentacles can be up to 165 ft long - and the sting will easily kill a small fish, and occasionally a human.
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