They were out for a frolic, and the night was splendid. Keeping one eye open for owls, they threw off all other caution, and swam and dived and chased each other through the water, with all the fun of boys in swimming.
On the bottom of the pond about the dam, in ten or twelve feet of water, was a bed of unios. I knew that they were there, for I had cut my feet upon them; and the muskrats knew they were there, for they had had many a moonlight lunch of them. These mussels the muskrats reckon sweetmeats. They are hard to get, hard to crack, but worth all the cost. I was not surprised, then, when one of the muskrats sleekly disappeared beneath the surface, and came up directly with a mussel.
There was a squabble on the plank, which ended in the other muskrat's diving for a mussel for himself. How they opened them I could not clearly make out, for the shells were almost concealed in their paws; but judging from their actions and the appearance of other shells which they had opened, I should say that they first gnawed through the big hinge at the back, then pried open the valves, and ate out the contents.
Having finished this first course of big-neck clams, they were joined by a third muskrat, and, together, they filed over the bank and down into the meadow. Shortly two of them returned with great mouthfuls of the mud-bleached ends of calamus-blades. Then followed the washing.
They dropped their loads upon the plank, took up the stalks, pulled the blades apart, and soused them up and down in the water, rubbing them with their paws until they were as clean and white as the whitest celery one ever ate. What a dainty picture! Two little brown creatures, humped on the edge of a plank, washing calamus in moonlit water!
One might have taken them for half-grown coons as they sat there scrubbing and munching. Had the big barred owl, from the gum-swamp down the creek, come along then, he could easily have bobbed down upon them, and might almost have carried one away without the other knowing it, so all-absorbing was the calamus-washing.
Muskrats, like coons, will wash what they eat, whether washing is needed or not. It is a necessary preliminary to dinner—their righteousness, the little Pharisees! Judging from the washing disease which ailed two tame muskrats that I knew, it is perfectly safe to say that had these found clean bread and butter upon the plank, instead of muddy calamus, they would have scoured it just the same.