VIDEO: Hippo swims frighteningly fast after boat

In this terrifying footage filmed by Craig Jackson in Zambia and posted to Facebook by Michael Varndell, an animal beneath the water swims swiftly after the boat before launching itself out of the water.

So is it a crocodile? Maybe a shark?

No, it's a hippo - one of those animals that you might forget is actuallly quite dangerous.

And fast.

Post by Michael Varndell.

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And now we're a litttle scared of hippos.