3. Hippopotamus
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The Hippopotamus, often seen as calm and gentle, actually exhibits aggressive and territorial behavior. Despite its large size, averaging around 3310 pounds and measuring about 5.2 feet, this semi-aquatic creature can reach speeds of up to 19 mph. It has been known to attack humans by flipping over boats and rafts, perceiving them as a threat to its territory. With its powerful jaws and notorious temperament, the Hippopotamus has caused a significant number of human fatalities in Africa.
