| 21. | Crocodile and hippopotamus are common and a hazard for fishermen and travellers.
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| 22. | Interestingly, Owen also does not respond to hippopotamus calls.
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| 23. | Livestock specialist Vladimir Petrovich Polonsky was put in charge of the hippopotamus.
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| 24. | The collection consisted of only 50 animals, including the recovered hippopotamus.
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| 25. | It was, however, significantly larger than the modern pygmy hippopotamus.
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| 26. | The River Umuvumba, contains hippopotamuses, and Nile crocodiles.
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| 27. | Among other finds, they reported remains of the hippopotamus.
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| 28. | The only surviving descendants of anthracotheres are the common and pygmy hippopotamuses.
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| 29. | An elephant, a hippopotamus, and a rhinoceros joined later on.
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| 30. | The reserve is notable for its Hippopotamus population in the Black Volta.
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