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.
Substance intoxication code) include: The term contact high is sometimes used to describe intoxication without direct administration, either by second-hand smoke (as with cannabis), or by placebo in the presence of others who are intoxicated. Substance intoxication Substance intoxication is a type of substance use disorder which is potentially maladaptive and impairing, but reversible, and associated with recent use of a substance. If the symptoms are severe, the term "substance intoxication delirium" may be used. Slang terms include: getting high (generic) or being stoned or blazed (usually in reference to cannabis), with many more specific slang terms for each particular type of