In some mammals the hairy covering is partial and limited to particular regions; in others, as the hippopotamus and the sea-cows, or Sirenia, though scattered over the whole surface, it is extremely short and scanty; xvir.
It is noteworthy, however, that in some instances there appears to have been a retrograde modification from the selenodont towards the bunodont type, the hippopotamus being a case in point.
The elephant, giraffe, lion, leopard, hyena, zebra, buffalo, gnu, quagga, kudu, eland and many other kinds of antelope roamed the plains; the rhinoceros, hippopotamus and crocodile lived in or frequented the rivers, and ostriches and baboons were numerous.
When the state was founded elephant and hippopotamus ivory formed for some years the most important article of export.
Antiquus, Hippopotamus pentlandi, as well as of those of still living African forms, such as Elephas africanus and Hyaena crocuta, makes it probable that there was a direct post-Tertiary connexion also with the African continent.
In the papyrus marshes the hippopotamus was slain with harpoons, the wild boar, too, was probably hunted, and the sportsman brought down wild-fowl with the boomerang, or speared or angled for fish.
In the rivers are rhinoceros, hippopotamus and crocodile.
East Africa is rich in all kinds of antelope, and the elephant, rhinoceros and hippopotamus are still plentiful in parts.
The hippopotamus and crocodile inhabit the larger rivers flowing west, but are not found in the Hawash, in which, however, otters of large size are plentiful.
The sacred beasts in the various temples, tame as far as possible, were of almost every conceivable variety, from the vulture to the swallow or the goose, from the lion to the shrew-mouse, from the hippopotamus to the sheep and the monkey, from the crocodile to the tortoise and the cobra, from the carp to the eel; the scorpion and the scarab beetle were perhaps the strangest in this strange company of deities.