Survival skills are basic ideas and abilities that ancient peoples invented and passed down for thousands of years. Today, survival skills are often associated with surviving in a disaster situation.
Outdoor activities such as hiking, backpacking, horseback riding, fishing, and hunting all require basic wilderness survival skills, especially to handle emergency situations. Individuals who practice survival skills as a type of outdoor recreation or hobby may describe themselves as survivalists. Survival skills are often used by people living off-grid lifestyles such as homesteaders. Bushcraft and primitive living are most often self-implemented but require many of the same skills. There are also many instances of survival skills being utilized by criminals, such as fugitives, draft dodgers, poachers, serial killers, illegal immigrants, escaped prisoners, organized criminals and terrorists, who avoid capture by authorities by hiding in wilderness areas. Additionally, both park rangers and conservation officers are taught survival skills to help them find missing persons, and in case they themselves become stranded while investigating wilderness crimes. The United States Armed Forces has a training program called SERE, in which military personnel, Department of Defense civilians, intelligence personnel, and private military contractors are taught survival skills and techniques for evading capture and escaping from captivity, in the event that they need to survive and hideout in wilderness areas while avoiding capture by enemy combatants.
Many people who are forced into survival situations often have an elevated risk of danger because of direct exposure to the elements. Many people in survival situations die of hypothermia or hyperthermia, or animal attacks. An effective shelter can range from a natural shelter, such as a cave, overhanging rock outcrop, or a fallen-down tree, to an intermediate form of man-made shelter such as a debris hut, tree pit shelter, or a snow cave, to a completely man-made structure such as a tarp, tent, or a longhouse. It is noted that some common properties between these structures are:
Fire is a tool that is helpful for meeting many survival needs. A campfire can be used to boil water, rendering it safe to drink, and to cook food. Fire also creates a sense of safety and protection, which can provide an overlooked psychological boost. When temperatures are low, fire can postpone or prevent the risk of hypothermia. In a wilderness survival situation, fire can provide a sense of home in addition to being an essential energy source. Fire may deter wild animals from interfering with an individual, though some wild animals may also be attracted to the light and heat of a fire.
There are numerous methods for starting a fire in a survival situation. Fires are either started with a concentration of heat, as in the case of the solar spark lighter, or through a spark, as in the case of a flint striker. Fires will often be extinguished if either there is excessive wind, or if the fuel or environment is too wet. Lighting a fire without a lighter or matches, e.g. by using natural flint and metal with tinder, is a frequent subject of both books on survival and in survival courses, because it allows an individual to start a fire with few materials in the event of a disaster. There is an emphasis placed on practicing fire-making skills before venturing into the wilderness. Producing fire under adverse conditions has been made much easier by the introduction of tools such as the magnesium striker, solar spark lighter, and the fire piston.
A human being can survive an average of three to five days without water. Since the human body is composed of an average of 60% water, it should be no surprise that water is higher on the list than fire or food. The need for water dictates that unnecessary water loss by perspiration should be avoided in survival situations. Perspiration and the need for water increase with exercise. Although the human water intake varies greatly depending on factors like age and gender, the average human should drink about 13 cups or 3 liters per day. Many people in survival situations perish due to dehydration, and/or the debilitating effects of water-borne pathogens from untreated water.
A typical person will lose a minimum of two to four liters of water per day under ordinary conditions, and more in hot, dry, or cold weather. Four to six liters of water or other liquids are generally required each day in the wilderness to avoid dehydration and to keep the body functioning properly. The U.S. Army survival manual does not recommend drinking water only when thirsty, as this leads to inadequate hydration. Instead, water should be consumed at regular intervals. Other groups recommend rationing water through "water discipline."
A lack of water causes dehydration, which may result in lethargy, headaches, dizziness, confusion, and eventually death. Even mild dehydration reduces endurance and impairs concentration, which is dangerous in a survival situation where clear thinking is essential. Dark yellow or brown urine is a diagnostic indicator of dehydration. To avoid dehydration, a high priority is typically assigned to locating a supply of drinking water and making provisions to render that water as safe as possible.
Culinary root tubers, fruit, edible mushrooms, edible nuts, edible beans, edible cereals or edible leaves, edible cacti, ants and algae can be gathered and, if needed, prepared (mostly by boiling). With the exception of leaves, these foods are relatively high in calories, providing some energy to the body. Plants are some of the easiest food sources to find in the jungle, forest or desert because they are stationary and can thus be obtained without exerting much effort. Animal trapping, hunting, and fishing allow a survivalist to acquire high-calorie meat, but require certain skills and equipment (such as bows, snares, and nets).
Focusing on survival until rescued, the Boy Scouts of America especially discourages foraging for wild foods on the grounds, as the knowledge and skills needed to make a safe decision are unlikely to be possessed by those finding themselves in a wilderness survival situation.
Mental clarity and preparedness are critical to survival. The will to live in a life-and-death situation often separates those that live and those that do not. Even well-trained survival experts may be mentally affected in disaster situations. It is critical to be calm and focused during a disaster.
To the extent that stress results from testing human limits, the benefits of learning to function under stress and determining those limits may outweigh the downside of stress. There are certain strategies and mental tools that can help people cope better in a survival situation, including focusing on manageable tasks, having a Plan B available, and recognizing denial.
Survivalists often carry a "survival kit." The contents of these kits vary considerably, but generally consist of items that are necessary or useful in potential survival situations, depending on the anticipated needs and location. For wilderness survival, these kits often contain items like a knife, water vessel, fire-starting equipment, first aid equipment, tools to obtain food (such as snare wire, fish hooks, or firearms), a light source, navigational aids, and signaling or communications devices. Multi-purpose tools are often chosen because they serve multiple purposes, allowing the user to reduce weight and save space.
Some survival books promote the "Universal Edibility Test." Allegedly, it is possible to distinguish edible foods from toxic ones by exposing your skin and mouth to progressively greater amounts of the food in question, with waiting periods and checks for symptoms between these exposures. However, many experts reject this method[weasel words], stating that even a small amount of some "potential foods" can cause physical discomfort, illness, or even death.
Many mainstream survival experts have recommended the act of drinking urine in times of dehydration and malnutrition. However, the U.S. Army Survival Field Manual (FM 21-76) instructs that this technique is a myth and should never be used. There are several reasons to avoid drinking urine, including the high salt content of urine, potential contaminants, and the risk of bacterial exposure, despite urine often being touted as "sterile."
Many classic western movies, classic survival books, and even some school textbooks suggest that using your mouth to suck the venom out of a venomous snake bite is an appropriate treatment. However, venom that has entered the bloodstream cannot be sucked out, and it may be dangerous for a rescuer to attempt to do so. Similarly, some survivalists promote the belief that when bitten by a venomous snake, drinking your urine provides natural anti-venom. Effective snakebite treatment involves pressure bandages and prompt medical treatment, and may require antivenom.
Historical references to survival cover aspects ranging from individual survival to that of empires, civilization, and of the human race as a whole. The concept is also applied to non-living and non-physical things. In engineering, the term can be used to mean "the continued ability of the system to perform the desired function". In law, it often refers to a holder of a legal interest who outlives another with whom that interest is shared, such as a surviving spouse, or to the interest itself, such as a right of survivorship. With respect to the human consciousness, particularly when discussed in connection with the concept of a soul or spirit, survival can refer to life after death:
In much of the literature on life after death, the term survival is employed more or less interchangeably with the term immortality. And yet it is not difficult to see why the term immortality is often preferred, particularly in some religious circles. It is not simply that it is free of the associations the term survival has with merely 'living on', or with lucky escape. More positively, the term immortality suggests some superior quality of existence, whereas the term survival suggests mere temporal extension, a continuation of the status quo ante. 041b061a72