Some hippos and ducks in Ngorongoro Crater, Tanzania.
click here to hear the hippos. Hippos spend most of the time in water and come out at night to feed.
If you are chased by a hippo it will outrun you, no matter how fast you are!
Hippos have killed more people in Africa than any other animal!
Hippos keep rivers clear of silt by churning up the bottom.
When hippos crap they twirl their tails like a propeller to break it up! True!
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