Thought sharks were the scariest thing in the water? After watching this video, not only will you be proven wrong, you'll probably be to scared to ever leave your house again.

This amazing footage shows a Goliath Grouper fish eating a four foot shark in one bite, and it's almost guaranteed to give you aquaphobia - which Google just kindly informed me is the technical term for an abnormal fear of water.

So, next time your out sailing, surfing, showering, bathing or even just brushing your teeth, beware. The Goliath Grouper is out there. And it's probably hunting you down.

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