This animal is nearly as large as the brown Rat, but has a larger head, a blunter nose, and smaller eyes; its ears are very short, and almost hidden in the fur, and the tip of its tail is whitish; the cutting-teeth are of a deep yellow colour in front, very strong, and much resembling those of the beaver. Its head and back are covered with long black hair, and its belly with iron gray. Tail more than half the length of the body, covered with hairs. Fur thick and shining; of a rich reddish brown, mixed with gray above, yellowish gray beneath. The female produces a brood of five or six young ones once (and sometimes twice) a year.
THE LEMMING, (Myodes Lemmus,)
Which is a near relation of the water-rat, and of about the same size, is covered with fur of a yellowish colour variegated with black. This animal resides in the mountains of Norway and Sweden, and is remarkable for performing extraordinary migrations in vast bodies at the approach of a severe winter, and making their appearance so suddenly and unexpectedly that people formerly asserted they had fallen from the clouds. Notwithstanding their supposed celestial origin, they are, however, very unwelcome visitors, as they devour everything eatable that comes in their way, and commit devastations almost as serious as those of the locusts.
THE SHORT-TAILED FIELD-MOUSE, OR FIELD-VOLE.
This little animal has most wonderful powers of reproduction, and, as it is extremely voracious, it often causes an amount of destruction quite out of proportion to its size and insignificant appearance. It burrows in the ground, like the lemming and water-rat; and as it gnaws through the roots of trees that lie in its way, it has been known to cause very serious loss of property. In the year 1813 such immense numbers of these creatures were collected in some of the forests of the South of England, that it was feared all the young trees would be destroyed, and it was found necessary to organise a war of extermination against the invaders. It is said that in New Forest alone not less than eighty or a hundred thousand mice were killed in one season, and the slaughter in other places was quite as great.
The Field-Vole’s favourite food is the bark of trees and roots, but, if pressed by hunger, it will attack and devour its own kind.
