HIPPOPOTAMUS.
The skin of the hippopotamus is often as much as an inch and a half in thickness on the upper parts of the body.
Gradually, as the world grows older, more civilised, and, to my thinking, less and less interesting, the range of the hippopotamus, like that of all other large animals, must become more and more circumscribed; but now that all Africa has been parcelled out amongst the white races of Western Europe, if the indiscriminate killing of hippopotamuses by either white men or natives can be controlled, and the constant and cruel custom of firing at the heads of these animals from the decks of river-steamers all over Africa be put a stop to, I believe that this most interesting mammal, owing to the nature of its habitat, and the vast extent of the rivers, swamps, and lakes in which it still exists in considerable numbers, will long outlive all other pachydermatous animals. Hideous, uncouth, and unnecessary as the hippopotamus may seem when viewed from behind the bars of its den in a zoological garden, it is nevertheless true that, when these animals have been banished from an African river by the progress of civilisation, that river has lost one of its highest charms and greatest ornaments.
The Pygmy or Liberian Hippopotamus is confined to Upper Guinea, and, compared with its only existing relative, is a very small animal, not standing more than 2 feet 6 inches in height, and measuring less than 6 feet in length. In weight a full-grown specimen will scale about 400 lbs. But little is known of the habits of this rare animal, specimens of which, I believe, have never been obtained, except by the German naturalists Herrn Büttikofer and Jentink. When alive, the colour of the skin of the pygmy hippopotamus is said to be of a greenish black, changing on the under-parts to yellowish green. The surface of the skin is very shiny. This species, unlike its giant relative, does not congregate in herds, nor pass its days in rivers or lakes, but lives in pairs in marshes or shady forests. It sleeps during the day, and at night wanders over a great extent of country, eating grass, wild fruits, and the young shoots of trees. Its flesh is said to be very succulent and much esteemed by the natives.
Photo by York & Son] [Notting Hill.
MALE AND FEMALE HIPPOPOTAMUSES.
A hippopotamus is almost inseparable from the water; it never goes farther away than possible from a river or lake.
A hippopotamus, apparently of the same species as that now found in Africa, formerly inhabited the Thames Valley. Great quantities of fossil remains of another species are also found in the island of Sicily. The bones found in England are mainly in the river gravel and brick earth of the south and midland districts of England. This seems to show that at the time when the animal existed our rivers must have been open all the year, and not ice-bound, for it is certain that no hippopotamus could live in a river which froze in winter. Yet among the remains of these animals are also found those of quite arctic species like the Musk-ox and the Reindeer, together with those of the Saiga Antelope, an inhabitant of the cold plateau of Tibet. The problem is: How could these creatures, one a dweller in warm rivers and the others inhabitants of cold arctic or sub-arctic regions, have existed together, apparently on the same area of ground? The answer, which does not seem to have occurred to naturalists who have discussed the question, seems to be plain enough. Any one who knows the conditions of the great rift valleys of Central Africa has the key to the solution of the puzzle. There was probably a very great difference in the vertical plane. Deep in the rift was probably a warm river, while above it may have been mountains from 10,000 to 20,000 feet high, with snow on the summits and glaciers in their valleys. On these cold and arctic heights the reindeer and the musk-ox would find congenial homes. Thousands of feet below, in the hot and narrow valley, the hippopotamus would revel in a warm and steamy climate. This is what actually occurs in the rift valleys of Central Africa, where the hippopotamus swims in rivers that are at no great distance from snow-covered and ice-capped mountains.