#WildlifeWednesday Muskrat (Ondatra zibethicus) are aquatic rodents about the size of guinea pigs. They have thick brown waterproof fur and webbed feet, but primarily swim by undulating their rat-like tails. They are found in marshes throughout the United States and Canada. Muskrat prefer freshwater wetlands to salt marsh. If you drive or walk through the freshwater wetlands of New Jersey in the winter, you are bound to see what looks like miniature beaver lodges made of grass, reeds and mud. Th