The American mink is a semiaquatic mammal inhabiting most of North America. This animal is a key predator of small mammals, fish, amphibians and insects.
The beaver is a large, brown, semi-aquatic mammal with a distinctive flattened, paddle-like tail. It lives in lakes, streams and forested wetlands throughout the Chesapeake Bay watershed.
The marsh rabbit is a brownish, medium-sized rabbit. In the Chesapeake Bay watershed, it is only found in the marshes and swamps of southeastern Virginia.
Marsh Rice Rat
The marsh rice rat is a grayish-brown rodent with a long tail. It lives in tidal marshes near the Chesapeake Bay in Delaware, Maryland and Virginia.
The muskrat is a semi-aquatic mammal with brownish fur and a long, rudder-like tail. It is found in marshes and other shallow-water areas throughout the Chesapeake Bay watershed.
Nutria are large, brown, semi-aquatic rodents that live in marshes and wetlands on the Delmarva Peninsula and other parts of the Chesapeake Bay watershed. They are an invasive species.
The river otter is a large, brown, weasel-like mammal found along the shores of the Chesapeake Bay and lakes, streams, rivers and marshes throughout the Bay watershed.