An American researcher and a Fulbright scholar Nina Jablonski, has claimed to have found a fossil of a hippopotami in Nepal, which is said to be around a millionof years old. Hippopotamus is a large mammal which is now only found in Africa. "We found the fossils in the east-Koshi river zone, as well as in the west Karnali river zone of Nepal,' said Jablonski. "This shows that the hippos survived all over South Asia,' said Jablonski.