Black Bear (Ursus americanus): Janet had the camera ready when this one decided to cross the Dark Hollow Trail/SNP near Skyline Drive.

Beaver (Castor canadensis): These little engineers are constantly thinning the forest near streams, rivers and swamps. A well-maintained dam seems to never burst. Location: C&O Canal. Photo by Ken Clark.

Sitka Deer (Odocoileus hemionus sitkensis): A native of Southeastern Alaska and British Columbia. There are viable herds on Assetuege Island and Black Water National Wildlife Refuge, MD. We do not know how they got there. Much smaller than the native White-tailed Deer. Photo by Saki.

White Tailed Deer (Odocoileus virginianus): Common but spooky. You can only get this close to them in Shenandoah National Park. Location: AT near Big Meadows Campground.

Eastern Gray Squirrel (Sciurus carolinensis) - lower photo - rare black coat: The common gray variety has a white belly and tan eye rings. Some "rust" in the face, back and tail. The black form is seen mostly in urban areas. Photos by Anita Mueller.

Sammy the Wonder Dog: Very common and reliable. Shows up on almost evey hike. Slowly becoming amphibious. Waiting for the day when he shows up without Leena.

Common Muskrat (Ondatra zibethicus): Lives in salt marshes, fresh water ponds, canals and streams. Partially webbed hind feet and vertically flattened tail makes it a good swimmer. Burrows into the banks of waterways. Builds floating lodge of cattails, roots and mud. Feeds primarily on aquatic vegetation. Photo by Anita Mueller.

Eastern Mole (Scalopus aquaticus): Bores tunnels under the soils surface, feeding on worms and grubs. Location: Upper Red Creek Tr, Dolly Sods North, WV. Photo by Craig Ross.

Little Brown Bat (Myotis lucifugus): Location - Long Pond Tr, GRSF, MD. Photo by Ken Clark.

Eastern Fox Squirrel (Sciurus niger): Much larger than the Eastern Gray Squirrel. Red chest, stomach, inner legs and edges of the tail. Delmarva race is more gray and white. Rare throughout the region. Photo by Anita Mueller.

Porcupine (Erethizon dorsatum): Mainly nocturnal. Location: Fowler Hollow SP, PA.

Red Fox (Vulpes vulpes): Indigenous and introduced stock now interbred. Red with black legs. Ears pointed and black. Throat white. Eats rodents, squirrels and rabbits as well as insects, berries and fruit. Dens are usually empty burrows from other animals. Nocturnal. Photo by Anita Muellar.