They may travel hundreds of feet from water to havest land plants. Muskrats use a feeding platform, flat areas just above the water level, essentially from the debris left over from eating. Reproduction Muskrats reproduce rapidly, producing 1-5 litters per year with up to 11 young per litter. The gestation period lasts 25-30 days. Breeding occurs in late winter through early September in the North and year-round in the South.
Females often breed while still nursing.
Habitat Muskrats are found in fresh, brackish or saltwater marshes, ponds, lakes, rivers, and canals. They have persisted quite well despite the widespread drainage of wetlands. They range over most of Canada and the U.S., except for Artic regions, much of California, Southwest, Texas, and Florida. The Common Muskrat is the largest rodent in its subfamily. Most active at dusk, at dawn, and at night, it may be seen at any time of day in all seasons, especially spring.