The Creatures of The Nile

Like in mostly every lake, river, ocean their is fish in the Nile, I don't prefer it but the Egyptians catch fish for food EWWW!!!!. The main animal that most Egyptians fear of is the Hippopotamus, they are extinct now but back then in achient Egyptian times they were all over the Nile river. This is not a animal but its something that was also all over the Nile and that is capsizing boats and they also caused damage to all the crops. OK back to hippopotamuses they were a really good hunt for Pharaohs. For all the other dangerous animals in the Nile such as snakes, alligators and their is a rumor that their are Purana's in the Nile, that's weird because I always thought they were only in the Amazon river, anyway because of these dangerous animals the Egyptians man this contraption called the Shadurf, Egyptians use this to get water out of the Nile basically like irrigation, they used the shadurf because of all the dangerous animals in the Nile.