The following are some of the chief differences between wolves, wild dogs, and domestic dogs. The ears of the wild animals are always pricked, the lop or drooping ear being essentially a mark of civilization; with very rare exceptions, their tails hang more or less and are bushy, the honest cock of the tail so characteristic of a respectable dog, being wanting. This is certainly the rule; but, curious enough, the Zoological Gardens contain at the present moment, a Portuguese female wolf which carries her tail as erect and with as bold an air as any dog. Wolves and wild dogs growl, howl, yelp, and cry most discordantly, but with one exception, do not bark; that exception being the wild hunting-dog of South Africa, which, according to Mr. Cumming, has three distinct cries; one is peculiarly soft and melodious, but distinguishable at a great distance: this is analogous to the trumpet-call, "halt and rally," of cavalry, serving to collect the scattered pack when broken in hot chase. A second cry, which has been compared to the chattering of monkeys, is emitted at night when the dogs are excited; and the third note is described as a sharp, angry bark, usually uttered when they behold an object they can not make out, but which differs from the true, well-known bark of the domestic dog. The common or European wolf is found from Egypt to Lapland, and is most probably the variety that formerly haunted these islands. The wolves of Russia are large and fierce, and have a peculiarly savage aspect. The Swedish and Norwegian are similar to the Russian in form, but are lighter in color, and in winter, totally white. Those of France are browner and smaller than either of these, and the Alpine wolves are smaller still. Wolves are very numerous in the northern regions of America; "their foot-marks," says Sir John Richardson, "may be seen by the side of every stream, and a traveler can rarely pass the night in these wilds without hearing them howling around him."[1] These wolves burrow, and bring forth their young in earths with several outlets, like those of a fox. Sir John saw none with the gaunt appearance, the long jaw and tapering nose, long legs and slender feet, of the Pyrenean wolves. India, too, is infested with wolves, which are smaller than the European. There is a remarkably fine animal at the Zoological Gardens, born of a European father and Indian mother, which, in size and other respects, so closely partakes of the characteristics of his sire, that he might well pass for pure blood. Among the ancients, wolves gave rise to many superstitious fictions. For instance, it was said that they possessed "an evil eye," and that, if they looked on a man before he saw them, he would forthwith lose his voice. Again, we find the Roman witches, like the weird sisters of Macbeth, employing the wolf in their incantations: "Utque lupi barbam variæ cum dente colubræ Abdiderint furtim terris." HOR. _Sat._ viii. lib. i.