This adult Muskrat is probably taking a meal home to the nest. They can bear more than one litter per year. Carrying this much food, rather than eating on the spot, suggests this adult has a litter unable yet to feed on their own. In Minnesota, Muskrats,
Ondatra zibethicus, eat vegetation they they find and harvest in wetlands. They weigh 2 to 5 pounds, and live in burrows or domed nests on the edge of ponds or streams.