This article's tone or style may not reflect the encyclopedic tone used on Wikipedia. See Wikipedia's guide to writing better articles for suggestions. (November 2019) (Learn how and when to remove this template message)
Astronauts participating in tropical survival training at an Air Force Base near the Panama Canal, 1963. From left to right are an unidentified trainer, Neil Armstrong, John H. Glenn Jr., L. Gordon Cooper, and Pete Conrad. Survival training is important for astronauts, as a launch abort or misguided reentry could potentially land them in a remote wilderness area.

Survival skills are techniques used to sustain life in any type of natural environment or built environment. These techniques are meant to provide basic necessities for human life, including water, food, and shelter. Survival skills also support proper knowledge and interactions with animals and plants to promote the sustaining of life over time.

Survival skills are basic ideas and abilities that ancient people invented and passed down for thousands of years.[1] Today, survival skills are often associated with surviving in a disaster situation.[2]

Outdoor activities such as hiking, backpacking, horseback riding, fishing, and hunting all require basic wilderness survival skills, especially to handle emergencies. 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 used to avoid attention from legitimate authorities or self-serving busybodies such as fugitives (from oppression or justice), irregular migrants, draft dodgers and draft evaders, poachers, escaped prisoners, serial killers, organized criminals and terrorists, by hiding in wilderness areas.[3][4] Additionally, both park rangers and conservation officers are taught survival skills to help them find missing persons, and in case they become stranded while investigating wilderness crimes.[5][6] 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 if they need to survive and hideout in wilderness areas while avoiding capture by enemy combatants.

First aid

Main article: Wilderness medical emergency

A first aid kit
A first aid kit containing equipment that can treat common injuries and illness.

First aid (wilderness first aid in particular) can help a person survive and function with injuries and illnesses that would otherwise kill or compromise them. Common and dangerous injuries include:

The person may need to apply the contents of a first aid kit or, if possessing the required knowledge, naturally occurring medicinal plants, immobilize injured limbs, or even transport incapacitated comrades.

Shelter

Main article: Bivouac shelter

Shelter built from tarp and sticks. Pictured are displaced people from the Sri Lankan Civil War.

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 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

Fire is a tool that helps meet 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.[7] 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.[8] 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 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.[8] 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.

Water

Hydration pack manufactured by Camelbak.

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 food.[9][10] 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.[11] Although 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.[12][13] Many people in survival situations perish due to dehydration, and/or the debilitating effects of water-borne pathogens from untreated water.[14][15]

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.[16] 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.[17][18] Other groups recommend rationing water through "water discipline."[19]

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.

Recent thinking is that boiling or commercial filters are significantly safer than the use of chemicals, with the exception of chlorine dioxide.[20][21][22]

Food

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.[23] 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.

Navigation

Celestial navigation: using the Southern Cross to navigate South without a compass.

When going on a hike or trip in an unfamiliar location, search and rescue advises to notify a trusted contact of your destination, your planned return time, and then notify them when returning.[24] In the event you do not return in the specified time frame, (e.g. 12 hours of the scheduled return time), your contact can contact the police for search and rescue.

Survival situations can often be resolved by finding a way to safety, or a more suitable location to wait for rescue. Types of navigation include:

Mental preparedness

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.[25] 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.[26]

Urban survival

Earthquake

Governments such as the United States[27] and New Zealand[28] advise that in an earthquake, one should "Drop, Cover, and Hold."

New Zealand Civil Defense explains it this way:[29]

The United States Federal Emergency Management Agency (FEMA)[27] adds that in the event of a building collapse, it is advised that you:

Important survival items

Civilian pilots attending a Survival course at RAF Kinloss learn how to construct shelter from the elements, using materials available in the woodland on the north-east edge of the aerodrome.

Main article: Survival kit

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.

Preconstructed survival kits may be purchased from various retailers, or individual components may be bought and assembled into a kit.

Controversial survival skills

Some survival books promote the "Universal Edibility Test."[30] 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.[31] 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.[32]

Many mainstream survival experts have recommended the act of drinking urine in times of dehydration and malnutrition.[33] However, the U.S. Army Survival Field Manual (FM 21–76) instructs that this technique is a myth and should never be used.[34] 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."[35]

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.[36]

See also

References

  1. ^ "Wilderness Survival Skills". www.wilderness-survival.co.uk. 28 September 2017. Retrieved 28 September 2017.
  2. ^ "12 Outdoor Survival Skills Every Guy Should Master". Men's Fitness. 28 September 2017. Retrieved 28 September 2017.
  3. ^ "B.C. Wilderness has hidden many fugitives". 13 April 2008.
  4. ^ "Camping Safety and Hiking Safety FAQ".
  5. ^ Park Ranger Skills[dead link]
  6. ^ "Week 17: Trained to save lives".
  7. ^ The Handbook Of The SAS And Elite Forces. How The Professionals Fight And Win. Edited by Jon E. Lewis. p.417-Tactics And Techniques, Survival. Robinson Publishing Ltd 1997. ISBN 1-85487-675-9
  8. ^ a b Fears, J. Wayne (14 February 2011). The Pocket Outdoor Survival Guide: The Ultimate Guide for Short-Term Survival. Simon and Schuster. ISBN 978-1-62636-680-0.
  9. ^ "The Water in You: Water and the Human Body". www.usgs.gov. Retrieved 10 October 2021.
  10. ^ "Body Water Percentage | Healthcare-Online". www.healthcare-online.org. Retrieved 10 October 2021.
  11. ^ HowStuffWorks by Charles W. Bryant
  12. ^ "How Much Water Should You Drink a Day?". Cleveland Clinic. 6 August 2020. Retrieved 10 October 2021.
  13. ^ J Appel, Lawrence; H Baker, David; Baror, Oded; L Minaker, Kenneth; Morris Jr, R Curtis; M Resnick, Lawrence; N Sawka, Michael; L Volpe, Stella; H Weinberger, Myron; K Whelton, Paul (11 February 2004). "Report Sets Dietary Intake Levels for Water, Salt, and Potassium To Maintain Health and Reduce Chronic Disease Risk". www.nationalacademies.org. Retrieved 10 October 2021.
  14. ^ "Dehydration: Why It Is So Dangerous - Diarrhoea, Diarrhea, Rehydration". rehydrate.org. Retrieved 10 October 2021.
  15. ^ "Drinking-water". www.who.int. Retrieved 10 October 2021.
  16. ^ Water Balance; a Key to Cold Weather Survival by Bruce Zawalsky, Chief Instructor, BWI
  17. ^ "Army Survival Manual; Chapter 13 – Page 2". Aircav.com. Retrieved 21 October 2011.
  18. ^ "U.S. Army Survival Manual FM 21-76, also known as FM 3-05.70 May 2002 Issue; drinking water". Survivalebooks.com. Retrieved 21 October 2011.
  19. ^ "Water Discipline" at Survival Topics
  20. ^ "US EPA". Archived from the original on 29 December 2011. Retrieved 27 December 2011.
  21. ^ "Wilderness Medical Society". Wemjournal.org. Retrieved 21 October 2011.[dead link]
  22. ^ "Wisconsin Dept. of Natural Resources". Dnr.wi.gov. 11 March 2008. Archived from the original on 8 March 2012. Retrieved 21 October 2011.
  23. ^ "Master The Great Outdoors". SurvivalGrounds.com. Retrieved 21 October 2011.
  24. ^ Police, Victoria. "Victoria Police - Search and Rescue Squad". www.police.vic.gov.au.
  25. ^ Krieger, Leif (3 April 2011). "How to Survive Any Situation". How to Survive Any Situation. Silvercrown Mountain Outdoor School.
  26. ^ Leach, John (1994). Survival Psychology. NYU Press.
  27. ^ a b "Earthquakes | Ready.gov".
  28. ^ "Home » National Emergency Management Agency".
  29. ^ "Drop, Cover and Hold Pāheke, Hīpoki me Pupuri". GetReady.Govt.nz. Get Ready NZ. Retrieved 6 December 2022.
  30. ^ US Army Survival Manual FM21-76 1998 Dorset press 9th printing ISBN 1-56619-022-3
  31. ^ Meals, Greenbelly. "The Universal Edibility Test". Greenbelly Meals. Retrieved 10 October 2021.
  32. ^ "The Universal Edibility Test". Backpacker. 23 April 2019. Retrieved 10 October 2021.
  33. ^ Gordon, Naomi (14 August 2020). "All the wildest things Bear Grylls has done - from drinking pee to sleeping inside a camel". Radio Times. Hubert Burda. Retrieved 10 October 2021.
  34. ^ FM 21-76 US ARMY SURVIVAL MANUAL (PDF). United States Department of Defense. 1 October 1970. p. 210. Retrieved 10 October 2021.
  35. ^ "True or False: It's Safe to Drink Your Urine | Winchester Hospital". www.winchesterhospital.org. Retrieved 10 October 2021.
  36. ^ Lawson, Malcolm (2013). "Top 10 Survival Myths Busted". SCS. DNM International. p. 1. Archived from the original on 27 April 2015. Retrieved 18 April 2015.

Further reading

Media