The hippopotamus is strong
And huge of head and broad of bustle;
The limbs on which he rolls along
Are big with hippopotomuscle.
He does not greatly care for sweets
Like ice cream, apple pie, or custard,
But takes to flavor what he eats
A little hippopotomustard.
from "habits of the Hippopotamus", the start of it actually
by by Arthur Guiterman
The hippopotamus, or hippo, is a large, mostly herbivorous mammal in sub-Saharan Africa, and one of only two extant species in the family Hippopotamidae . The name comes from the ancient Greek for "river horse" . After the elephant and rhinoceros, the hippopotamus is the third-largest type of land mammal and the heaviest extant artiodactyl.