“Now we come to the largest family of the Rodent order, the Rat family, which of course includes the Mice,” said Old Mother Nature, after calling school to order at the old meeting-place. “And the largest member of the family reminds me very much of the one we learned about yesterday.” “I know!” cried Peter Rabbit. “You mean Jerry Muskrat.” “Go to the head of the class, Peter,” said Old Mother Nature, smiling. “Jerry is the very one, the largest member of the Rat family. Sometimes he is spoken of as a little cousin of Paddy the Beaver. Probably this is because he looks something like a small Beaver, builds a house in the water as Paddy does, and lives in very much the same way. The truth is, he is no more closely related to Paddy than he is to the rest of you. He is a true Rat. He is called Muskrat because he carries with him a scent called musk. It is not an unpleasant scent, like that of Jimmy Skunk, and isn't used for the same purpose. Jerry uses his to tell his friends where he has been. He leaves a little of it at the places he visits. Some folks call him Musquash, but Muskrat is better. “Jerry is seldom found far from the water and then only when he is seeking a new home. He is rather slow and awkward on land; but in the water he is quite at home, as all of you know who have visited the Smiling Pool. He can dive and swim under water a long distance, though not as far as Paddy the Beaver.” “Has he webbed hind feet like Paddy?” piped up Jumper the Hare. “Yes and no,” replied Old Mother Nature. “They are not fully webbed as Paddy's are, but there is a little webbing between some of the toes, enough to be of great help in swimming. His tail is of greater use in swimming than is Paddy's. It is bare and scaly, but instead of being flat top and bottom it is flattened on the sides, and he uses it as a propeller, moving it rapidly from side to side. “Like Paddy he has a dark brown outer coat, lighter underneath than on his back and sides, and like Paddy he has a very warm soft under coat, through which the water cannot get and which keeps him comfortable, no matter how cold the water is. You have all seen his house in the Smiling Pool. He builds it in much the same way that Paddy builds his, but instead of sticks he cuts and uses rushes. Of course it is not nearly as large as Paddy's house, because Jerry is himself so much smaller. It is arranged much the same, with a comfortable bedroom and one or more passages down to deep water. In winter Jerry spends much of his time in this house, going out only for food. Then he lives chiefly on lily roots and roots of other water plants, digging them up and taking them back to his house to eat. When the ice is clear you can sometimes see him swimming below.” “I know,” spoke up Peter Rabbit. “Once I was crossing the Smiling Pool on the ice and saw him right under me.”