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Hippopotamus: North Africa
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Pod of hippos, Luangwa Valley, Zambia A study of hippopotamus reproductive behavior in Uganda showed that peak conceptions occurred during the end of the wet season in the summer, and peak births occurred toward the beginning of the wet season in late winter. This is because of the female's oestrous cycle; as with most large mammals, male hippopotamus spermatozoa is active year round. Studies of hippos in Zambia and South Africa ... showed evidence of births occurring at the start of the wet season.[5] After becoming pregnant, a female hippopotamus will typically not begin ovulation again for 17 months.[37]
The hippopotamus is recognizable for its barrel-shaped torso, hairless body, stubby legs and tremendous size. It is similar in size to the White Rhinoceros; only elephants are consistently larger and despite its stocky shape and short legs, it can easily outrun a human. Despite its popularity in zoos and cuddly portrayal as gentle giants in fiction, the hippopotamus is among the most dangerous and aggressive of all mammals. Although there are an estimated 125,000 to 150,000 hippos throughout Sub-Saharan Africa,[1] they are still threatened by poaching and habitat loss.
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Click to enlarge The hippopotamus, whose hide alone can weigh half a ton, is the third-largest living land mammal, after elephants and white rhinos. It was considered a female deity of pregnancy in ancient Egypt, but in modern times has been wiped out of that country because of the damage it inflicts on crops. The hippo continues to thrive in other parts of Africa.
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