North American beaver large, webbed hind feet. The unwebbed front paws are smaller, with claws. The eyes are covered by a nictitating membrane which allows the beaver to see under water. The nostrils and ears are sealed while submerged. A thick layer of fat under its skin insulates the beaver from its coldwater environment. The beaver's fur consists of long, coarse outer hairs and short, fine inner hairs (see Double coat). The fur has a range of colors, but usually is dark brown. Scent glands near the genitals secrete an oily substance known as castoreum, which the beaver uses to waterproof its fur.
Castor Creek (Little River tributary) Miss Olla Mills, who later became Mrs. CC Young, died in 1901 and is buried in the Olla Cemetery. According to the Geographic Names Information System, Castor Creek has also been known historically as: Castor Creek (Little River tributary) Castor Creek or Bayou Castor is a tributary of the Little River in north-central Louisiana in the United States. Via the Little, Ouachita and Red rivers, it is part of the watershed of the Mississippi River. Castor Creek or Bayou Castor flows from a spring in northern Jackson Parish. Caney Lake in Jackson Parish is a main tributary of Castor Creek