The name of which animal means 'river horse' in Greek? (A) Rhinoceros (B) Crocodile (C) Zebra (D) Hippopotamus Ans: (D) Hippopotamus About Hippopotamus The hippopotamus, also called the hippopotamus, the common hippopotamus or river hippopotamus, is a large, mostly herbivorous, semi-aquatic mammal and native to sub-Saharan Africa. It is one…