There was very few lager waterholes left of Ruaha River for the hippo's some smaller and mostly so small, that space was for just one hippo On a ranger walk we got to close and it attacked Pretty scary - it got close - and only a calm backing, cooled it down again Hippo's and crocodiles in same waterhole Crocodile Rauha hippo's resist absence of waterholes due to special oilglands in the skin Wildebeest Warthog Kirk's Dikdik