Skunk oil, also referred to as skunk grease, is an oil that is obtained from the two lateral glands that run the length of a skunk's back. Skunks store fat in these glands for use during hibernation or semi-hibernation in warmer climates. Skunk oil has minimal odor. [1]
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The striped skunk is known for its defensive secretion it uses to repel predators. [2] Skunk oil has been the subject of research due to its "paradoxical nature" of being both a deterrent to potential predators and attractant to certain carnivores, such as the coyote. [3] Skunk oil was used by the Native Americans as a healing balm or liniment. Natives of the Micmac tribe of Nova Scotia, Canada, reportedly mixed skunk oil with oil from the red squirrel to produce an ingestible concoction that induced vomiting and relieved whooping cough. [4]
When rendered from the glands over a low heat, it has the consistency of an SAE10 motor oil and the feel of coal oil when applied to the skin. It gives a warming sensation as a mild liniment would.
Skunk oil was, according to later recounts, a not uncommon remedy used by frontiersmen in parts of the northern USA in the late 19th century. It was used against severe colds by rubbing it on the chest in combination with the ingestion of warm herbal teas. [5]
The early explorers and fur buyers, especially in Canada, found that the oil was a very useful addition to their medical kits and paid the natives a premium price for it.
It is also used in the United States as a way for deer hunters to mask their human odor while hunting.
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In the late 19th century and early 20th century, some self-sufficient farmers in North America would produce skunk oil as a home remedy. One way to produce skunk oil was to boil the fat of several skunks and add a couple of tablespoons of male skunk glandular secretion before the oil coagulated. The oil, once cooled, could be stored in a jar for years. [6]
Around 1900, the state of Maine produced about 25,000 gallons of the oil annually which sold for about $4/gallon. [7] [8]
Snake oil is a term used to describe deceptive marketing, health care fraud, or a scam. Similarly, snake oil salesman is a common label used to describe someone who sells, promotes, or is a general proponent of some valueless or fraudulent cure, remedy, or solution. The term comes from the "snake oil" that used to be sold as a cure-all elixir for many kinds of physiological problems. Many 18th-century European and 19th-century United States entrepreneurs advertised and sold mineral oil as "snake oil liniment", making claims about its efficacy as a panacea. Patent medicines that claimed to be panaceas were extremely common from the 18th century until the 20th century, particularly among vendors masking addictive drugs such as cocaine, amphetamine, alcohol, and opium-based concoctions or elixirs, to be sold at medicine shows as medication or products promoting health.
Skunks are mammals in the family Mephitidae. They are known for their ability to spray a liquid with a strong, unpleasant scent from their anal glands. Different species of skunk vary in appearance from black-and-white to brown, cream or ginger colored, but all have warning coloration.
Abies balsamea or balsam fir is a North American fir, native to most of eastern and central Canada and the northeastern United States.
Body odor or body odour (BO) is present in all animals and its intensity can be influenced by many factors. Body odor has a strong genetic basis, but can also be strongly influenced by various factors, such as sex, diet, health, and medication. The body odor of human males plays an important role in human sexual attraction, as a powerful indicator of MHC/HLA heterozygosity. Significant evidence suggests that women are attracted to men whose body odor is different from theirs, indicating that they have immune genes that are different from their own, which may produce healthier offspring.
The genus Spilogale includes all skunks commonly known as spotted skunks. Currently, there are four accepted extant species: S. gracilis, S. putorius, S. pygmaea, and S. angustifrons. New research, however, proposes that there may be up to seven.
Digestive enzymes take part in the chemical process of digestion, which follows the mechanical process of digestion. Food consists of macromolecules of proteins, carbohydrates, and fats that need to be broken down chemically by digestive enzymes in the mouth, stomach, pancreas, and duodenum, before being able to be absorbed into the bloodstream. Initial breakdown is achieved by chewing (mastication) and the use of digestive enzymes of saliva. Once in the stomach further mechanical churning takes place mixing the food with secreted gastric acid. Digestive gastric enzymes take part in some of the chemical process needed for absorption. Most of the enzymatic activity, and hence absorption takes place in the duodenum.
Sweat glands, also known as sudoriferous or sudoriparous glands, from Latin sudor 'sweat', are small tubular structures of the skin that produce sweat. Sweat glands are a type of exocrine gland, which are glands that produce and secrete substances onto an epithelial surface by way of a duct. There are two main types of sweat glands that differ in their structure, function, secretory product, mechanism of excretion, anatomic distribution, and distribution across species:
The Colorado River toad, also known as the Sonoran Desert toad, is a toad species found in northwestern Mexico and the southwestern United States. It is well known for its ability to exude toxins from glands within its skin that have psychoactive properties.
The anal glands or anal sacs are small glands near the anus in many mammals. They are situated in between the external anal sphincter muscle and internal anal sphincter muscle. In non-human mammals, the secretions of the anal glands contain mostly volatile organic compounds with a strong odor, and they are thus functionally involved in communication. Depending upon the species, they may be involved in territory marking, individual identification, and sexual signalling, as well as defense. Their function in humans is unclear.
The European edible dormouse also known as the European dormouse or European fat dormouse is a large dormouse and one of only two living species in the genus Glis, found in most of Europe and parts of western Asia. The common name comes from the Romans, who ate them as a delicacy.
The eastern spotted skunk is a small, relatively slender skunk found in North America, in the central and parts of the southeastern United States and in small areas of Canada and Mexico.
The striped skunk is a skunk of the genus Mephitis that occurs across much of North America, including southern Canada, the United States, and northern Mexico. It is currently listed as least concern by the IUCN on account of its wide range and ability to adapt to human-modified environments.
The hooded skunk is a species of mammal in the family Mephitidae. Mephītis in Latin means "foul odor", μακρός (makrós) in Greek translates to "long" and οὐρά (ourá) translates to "tail".
Dogs, as with all mammals, have natural odors. Natural dog odor can be unpleasant to dog owners, especially when dogs are kept inside the home, as some people are not used to being exposed to the natural odor of a non-human species living in proximity to them. Dogs may also develop unnatural odors as a result of skin disease or other disorders or may become contaminated with odors from other sources in their environment.
An apocrine sweat gland is composed of a coiled secretory portion located at the junction of the dermis and subcutaneous fat, from which a straight portion inserts and secretes into the infundibular portion of the hair follicle. In humans, apocrine sweat glands are found only in certain locations of the body: the axillae (armpits), areola and nipples of the breast, ear canal, eyelids, wings of the nostril, perineal region, and some parts of the external genitalia. Modified apocrine glands include the ciliary glands in the eyelids; the ceruminous glands, which produce ear wax; and the mammary glands, which produce milk. They are distinct from eccrine sweat glands, which cover the whole body.
Margaric acid, or heptadecanoic acid, is a saturated fatty acid. Its molecular formula is CH3(CH2)15CO2H. Classified as an odd-chain fatty acid, it occurs as a trace component of the fat and milkfat of ruminants. Salts and esters of margaric acid are called heptadecanoates.
Chemical defense is a strategy employed by many organisms to avoid consumption by producing toxic or repellent metabolites or chemical warnings which incite defensive behavioral changes. The production of defensive chemicals occurs in plants, fungi, and bacteria, as well as invertebrate and vertebrate animals. The class of chemicals produced by organisms that are considered defensive may be considered in a strict sense to only apply to those aiding an organism in escaping herbivory or predation. However, the distinction between types of chemical interaction is subjective and defensive chemicals may also be considered to protect against reduced fitness by pests, parasites, and competitors. Repellent rather than toxic metabolites are allomones, a sub category signaling metabolites known as semiochemicals. Many chemicals used for defensive purposes are secondary metabolites derived from primary metabolites which serve a physiological purpose in the organism. Secondary metabolites produced by plants are consumed and sequestered by a variety of arthropods and, in turn, toxins found in some amphibians, snakes, and even birds can be traced back to arthropod prey. There are a variety of special cases for considering mammalian antipredatory adaptations as chemical defenses as well.
The human digestive system consists of the gastrointestinal tract plus the accessory organs of digestion. Digestion involves the breakdown of food into smaller and smaller components, until they can be absorbed and assimilated into the body. The process of digestion has three stages: the cephalic phase, the gastric phase, and the intestinal phase.
Mischocyttarus flavitarsis is a social paper wasp found in western North America. Their nests can be found both in forests close to rivers or in close proximity to human life under the eaves of roofs. Despite the fact that M. flavitarsis nests are frequently in close contact with humans, M. flavitarsis typically will not sting, but rather ram into the threatening individual. Their colony cycle typically begins before May and will last until October. The queen will then seek a hibernation site for the winter. Perched near female hibernation sites are males with whom the female will mate. The males have claimed their territory by rubbing sternal brushes along the border of the site, leaving a chemical that deters other individuals from approaching. M. flavitarsis feed on arthropods, nectar, and animal carcasses and are often prey to birds, ants, and praying mantis.
A toxungen comprises a secretion or other bodily fluid containing one or more biological toxins that is transferred by one animal to the external surface of another animal via a physical delivery mechanism with or without direct contact between the secreting animal and the victim. Toxungens can be delivered through spitting, spraying, or smearing. As one of three categories of biological toxins, toxungens can be distinguished from poisons, which are passively transferred via ingestion, inhalation, or absorption across the skin, and venoms, which are delivered through a wound generated by direct contact in the form of a bite, sting, or other such action. Toxungen use offers the evolutionary advantage of delivering toxins into the target's tissues without the need for physical contact. Animals that deploy toxungens are referred to as toxungenous.
