Part 9

The mole is an engineer and miner who seems to have a strange sense of direction practically unknown to many other animals. How he manages to form tunnels and burrows in lines of such unusual straightness is unknown; he always works in darkness, unless it is that he can see in the dark. His little hills are not deliberate structures; they are only shaft ends through which this miner throws out the earth that he has scooped from subterranean depths, and in most cases smoothed out so that if an observer examines the burrow he will find only solid earth, and a road into his tunnel which leads to his real habitation.

The home of the mole is usually beneath a tree or hillock, and reminds one of a miniature city of tunnels and engineering feats. The main, or central, room is shaped like a great dome, the upper part of which is level with the earth around the hill, and therefore nowhere near its apex. Mr. Wood has verified the observation that around the keep are two circular passages, one of which is level with the ceiling, while the other is above. The upper circle is decidedly smaller than the lower; and there are five ascending passages which connect the galleries with each other. There is only one entrance, however, and from it three roads lead into the upper part of the keep. When a mole enters the house from one of the tunnels, he must go through the basement in order to get to the upper part of the house and so descend into the keep. There is still another entrance into the keep from below. One passage leads downward directly from the middle of the chamber, then curving upward, leads into a larger tunnel or subway.

Throughout the vast network of tunnels every inch of wall space seems quite smooth and polished. This is due to the continuous pressure of the mole's fur against the walls. Thus there is little danger of the walls collapsing even after a rain-storm. No human being knows just why the mole has such a complex system of underground streets and tunnels; perhaps it is because he finds that a greater feeling of safety surrounds his home when he knows that in case of danger he can escape in a dozen directions. Surely he is the original builder of labyrinths!

How marvellous that so tiny a creature can build such a fortress! The complex chambers and circular galleries do justice to an artist. The space of ground covered by a single mole's roads and galleries is almost unbelievable; in every direction from the fortress they run, and are sunk at various depths, according to the condition of the mole's hunting-grounds, which are really the spaces of ground through which he tunnels. Worms and underground insects are his chief food. Sometimes he ploughs along the surface of the ground, and exposes his back as he works; but if the weather is dry, he ploughs deeply into the earth for worms. He fills his storehouse with earth-worms for winter use, and he finds it necessary to bite their heads off, which leaves them inert but not dead. This cannot be done in the summer months without the heads re-growing and the worms crawling away. The mole knows the exact temperature best suited for keeping his meat fresh!

A most interesting and beautiful family of miner-cousins of the moles are the shrews. They are excavators of great ability, and because of their nocturnal habits are rarely seen alive. They are very similar to the mole, though much more handsome. Their domicile is built of dry grass at the end of a tunnel.

The shrew mole of North America is a ground-digger of great ingenuity. He is second only to the mole in the extent and pretensions of his engineering and tunnelling. His eyes are very small and deeply hidden in his fur. During the day he constantly comes to the surface of the earth, and one may catch him by driving a hoe or spade underneath him.

Another underground-dweller is the elephant shrew of South America. He has a long nose, thick fur, short ears, and, unlike his cousins, he loves to bask in the warm sunshine. At the least signal of alarm he darts away to his subterranean home. As a mining engineer he is unexcelled; he sinks his tunnels by first boring an almost perpendicular shaft, and then making his burrows at an angle. It is a sad day for earth-worms when he decides to locate in their vicinity!

It is not an easy task to classify the homes of animals. Many of them have characteristics that entitle them to be placed under several groupings. The otter, for example, might be classed as a cave-dweller, as he seeks refuge in caves; yet he also rears his young in underground nests as a burrowing animal. But few naturalists believe that he does his own digging. This is not surprising when we remember that there are many other animals that live in caves and grottoes, and like the otter, seek ready-made homes for their convenience. Among these may be mentioned three American salamanders, bats, and a few strange mice, who seek darkness and constant temperature, and therefore find caves best suited to their needs.

The same is true of the weasel, who is thought to be a great burrower, but in fact, like our remote cave-dwelling ancestors, makes his home only in caves, in rocky crevices, and under the gnarled roots of old trees. He is a bright-eyed little creature, with a slender snake-like neck and red body. He is a great friend of mankind, as he does more toward eradicating mice and other nocturnal depredators than all the rat-catchers in the land. His home is quite ordinary compared to that of the more ambitious underground-dwellers.

A near cousin of the weasel, and a most ingenious engineer and miner, is the badger. He is a tenement-dweller and builds his home in the deep, shady woods. His home is rather pretentious with several chambers, and a most delightfully furnished nursery which is warmly padded with dry grass and moss.

The badger, once so plentiful in England and America, is fast passing away because of the increase of towns and cities. As soon as the forest in which he dwells is drained and converted into farm land, the badger disappears. He is driven from the soil where he once held sway, and is one of those unfortunate animals which are eliminated by man-made civilisation.

The fox of the Far North is a famous excavator, and his underground home which shelters and protects him from the extreme cold is most spacious. It is a strange fact that these cunning little animals rarely make their homes away from others of their kind. Sometimes twenty to thirty are found in close proximity. And their owners are unquestionably the smartest, keenest, and quickest creatures that roam the wilds. While some of their deeds are questionable, their quick wits and nimble bodies excite our admiration.

These arctic foxes really build small cities, and their semi-social life may be accounted for by the peculiar suitability of the place which they select for a habitation. Their homes are usually in a sandy hill, where it is very easy for them to burrow; and the strangest part of the whole city is that each burrow is complete and entirely independent in itself. There are many winding paths and tunnels in each house, but each belongs exclusively to its owner and never winds into a neighbour's house. In case of danger the fox has many directions in which he may escape.

The nursery is the most carefully arranged of all the rooms. It is rather small and is directly connected with the main outer chamber somewhat like the nursery of the mole. So skilfully is it situated that it sometimes happens a hunter will dig into a fox's burrow and never discover the nest of young, and later the clever mother will return to carry away her babes, which are usually five to six in number. Adjoining the nursery are two or three storage rooms filled with food for the winter. The number of bones usually found in the basement indicates that a great variety of ducks, fish, hares, lemming, and stoats are regularly eaten, and that the average fox family does not want for food.

The arctic fox is not only a beauty in his coat of pure white, but is unusually brainy. Persecuted animals, like persecuted human beings, become very wise. Nature is kind to the fox in his arctic home, and in the winter turns his coat snow white so that he may easily escape his enemies--especially men, who seek his beautiful fur and edible body. He is skilled in his distrust of wires, sticks, guns and strings! No man knows better than he the meaning of foot-tracks in the snow, and how long they have been there, and which way they lead; thus, those that survive their enemies have acquired extreme wisdom, and keep carefully away from everything that is at all suspicious to their eyes and nostrils.

The Siberian fox is one of those wise creatures that has defied in a most extraordinary way his handicaps, and, refusing to admit them, has boldly selected the strangest dwelling-place known to the animal world--the horn of the mountain sheep. This unique dwelling-place has been the home of the Siberian fox for ages, and his ancestors have known no other. The mountain sheep, which are giants among their kind, have the longest horns in proportion to their size of any animal in existence. The argali of Siberia is the largest of all sheep, and is equal in bulk and weight to an average-sized ox, with horns proportionally large. The horns of these animals are strikingly like those of the Rocky Mountain sheep of America, except they are much larger. They spring up from the forehead, tilt backward, then boldly curve below the muzzle, before finally again pointing upward and tapering into a sharp and delicate point. They are hollow, though exceedingly stout and elastic, and strengthened on the outside by a number of ridges or horny rings set very close together. They are found in large numbers in this land of perpetual ice and snow, and it is thought that they break from the sheep's heads very easily.

It is not uncommon to find them lying in a spot which has been a battlefield, where two sheep in attempting to settle some dispute have fought and fallen. It is not long after they have thus fallen before they are utilised by Mr. Fox. He stores himself carefully away in these roomy horns, one of which Mrs. Fox uses as a nursery, finding it a snug, safe, and warm place to rear her little family.

The other varieties of foxes, especially the grey and red, are not so skilled in home-making. This may be due to the fact that they do not have need of such elaborate houses as their arctic cousins. Again, it may be that the existence of numerous deserted homes of badgers, or even rabbits, makes it unnecessary for them to spend their time in building homes of their own. It is much easier to enlarge the ready-made burrow of a rabbit than to dig a new tunnel, of course.

If there is no ready-made burrow to be had, then the wise fox sets to work and scoops out his own. Herein he sleeps all the day, and comes forth only at night. A small chamber from the main room serves as the nursery, and here the babies are born and nurtured. Nothing is more beautiful than to see the entire family--mother, father, and children--come forth at evening to play. The young are as sportive as pups, but they never wander far from home. Their broad heads, grey coats, short tails and awkward appearance would lead no one to think that they were the children of handsome, nimble-limbed, intelligent Mrs. Fox!

Woe to the dog that enters Mrs. Fox's home! She is a pugilist of the first order, and knows how to fight far better than the average bull terrier. It requires a very savage dog to kill her, and he is apt to be minus an ear when the battle is over.

Red and grey foxes are similar in intelligence, but differ in many other ways: the former are like the gipsies in always moving about from place to place, while the latter stick to one general locality, although their hunting-grounds may range for several miles in all directions. Red foxes seem actually to enjoy being hunted by dogs; in most cases they will outrun the dogs, and rarely seek protection from caves or rocks.

The grey fox, on the other hand, cares little for racing, but seeks protection among rocky cliffs where the dogs are at a disadvantage. Here none but the smallest canines may enter the holes and crannies, and they are usually wise enough to stay out. Hunters are thoroughly familiar with the tactics of the fox family, and therefore select the red ones for their sport.

The foxes are truly famed for their cunning, and when other animals try to play tricks on them, the trick usually turns out in the foxes' favour. During the winter season these wise creatures are sometimes hard pressed for food. Birds and small animals are hard to catch, and the farmers' chicken houses are closed. It is then that the wise fox needs all his wit and wisdom, for he oftentimes becomes the hunted as well as the hunter. His chief enemies are the puma and the timber wolf, but they are seldom able to get him.

The prairie-dog is so talented that he might be classed under several headings; he is sociable, a burrower, and especially gifted in the art of constructing underground "dog towns." He is rarely called by his Indian name, Wish-ton-wish, and we know him only as the prairie-dog. Evidently he was given this name because of his yelping bark, which resembles the cry of a young domestic dog.

He is a good-looking but rather curious little animal. He has a round, flat head, and garish-red fur, and a stout little body. He makes an affectionate pet, and loves the society of human beings. When he decides to start a town, he usually succeeds, for he is an exceedingly prolific animal, and his extensive burrows seem to have no ends. They are rather large, and run to great depths. In the western part of the United States, especially on the big prairies, the prairie-dog towns often cover large areas. They are usually dug in a sloping direction, and descend four to six feet in depth, and then suddenly rise upward again. Hundreds of these little tunnels are dug in such close proximity to each other that it is quite unsafe for cattle and horses to pass over them. This is the chief reason why ranchmen do not like the otherwise harmless little animals of the prairies.

These dog towns are most curious, and a visit to one of them well repays the traveller. Strangely enough, the prairie-dog is exceedingly inquisitive and this very quality often costs the little animal his life. Mr. Wood, in describing the prairie-dog's habits, says that this wise little Westerner, when perched on the hillocks which we have already described, is able to survey a wide extent of territory and as soon as he sees a visitor, he gives a loud yelp of alarm, and dives into his burrow, his tiny feet knocking together with a ludicrous flourish as he disappears. In every direction similar scenes are enacted. The warning cry has been heard, and immediately every dog within a hundred yards repeats the cry and leaps into his burrow. Their curiosity, however, cannot be suppressed, and no sooner have they vanished from sight than their heads are seen protruding from their burrows. Sometimes hundreds of them will be peeping from their homes at one time, their beautiful eyes sparkling as they cautiously watch the enemy's every movement.

The prairie-dog is truly a tenement dweller, and his home is occupied not only by his own kind, but by owls and rattlesnakes. Most naturalists believe that these incongruous families live in perfect harmony; but it is a well-known fact that the snake occasionally devours the young prairie-dogs, and he must be considered by them as an intruder who procured board and lodging without their consent. The owls, on the other hand, are supposed to do no harm, although it may be that they also occasionally feast on a tender young pup.

The magnificent little animals known to scientists as vizcachas, and whose homes are on the pampas of South America, are the most skilled builders of underground cities in the animal world. Their villages or cities are called "vizcacheras" and are provided with from ten to twenty mouths or subway entrances, with one entrance often serving for several holes. If the ground is soft, it is not uncommon to find twenty to thirty burrows in a vizcachera; but if the ground is rocky and hard, only four or five burrows are found. These wide-mouthed, gaping burrows are dug close together, and the entire town usually covers from one hundred to two hundred square feet.