“I fancy,” answered Lucien, “they are marmot-houses.”
“They are,” affirmed Norman; “there are plenty of them in this country.”
“Oh! marmots!” said François. “Prairie-dogs, you mean?—the same we met with on the Southern prairies?”
“I think not,” replied Norman: “I think the prairie-dogs are a different sort. Are they not, cousin Luce?”
“Yes, yes,” answered the naturalist; “these must be a different species. There are too few of them to be the houses of prairie-dogs. The 'dogs' live in large settlements, many hundreds of them in one place; besides, their domes are somewhat different in appearance from these. The mounds of the prairie-dogs have a hole in the top or on one side. These, you see, have not. The hole is in the ground beside them, and the hill is in front, made by the earth taken out of the burrow, just as you have seen it at the entrance of a rat's hole. They are marmots, I have no doubt, but of a different species from the prairie-dog marmots.”
“Are there not many kinds of marmots in America? I have heard so,” said François.
This question was of course addressed to Lucien.
“Yes,” answered he. “The fauna of North America is peculiarly rich in species of these singular animals. There are thirteen kinds of them, well known to naturalists; and there are even some varieties in these thirteen kinds that might almost be considered distinct species. I have no doubt, moreover, there are yet other species which have not been described. Perhaps, altogether, there are not less than twenty different kinds of marmots in North America. As only one or two species are found in the settled territories of the United States, it was supposed, until lately, that there were no others. Latterly the naturalists of North America have been very active in their researches, and no genus of animals has rewarded them so well as the marmots—unless, perhaps, it may be the squirrels. Almost every year a new species of one or the other of these has been found—mostly inhabiting the vast wilderness territories that lie between the Mississippi and the Pacific Ocean.
“These little animals seem to form a link between the squirrels and rabbits. On the side of the squirrels they very naturally join on, if I may use the expression, to the ground-squirrel, and some of them, differ but little in their habits from many of the latter. Other species, again, are more allied to the rabbits, and less like the squirrels; and there are two or three kinds that I should say—using a Yankee expression—have a 'sprinkling' of the rat in them. Some, as the ground-hog, or wood-chuck of the United States, are as large as rabbits, while others, as the leopard-marmot, are not bigger than Norway rats.
“Some species have cheek-pouches, in which they can carry a large quantity of seeds, nuts, and roots, when they wish to hoard them up for future use. These are the spermophiles, and some species of these have more capacious pouches than others. Their food differs somewhat, perhaps according to the circumstances in which they may be placed. In all cases it is vegetable. Some, as the prairie-dogs, live upon grasses, while others subsist chiefly upon seeds, berries, and leaves.