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Detail of the two heads of Kap Dwa. Source: CC BY SA

Tales of a Two-headed Giant: Are Legends of Patagonia’s Kap Dwa Real?


In the annals of history, tales of giants have permeated diverse cultures, weaving a rich tapestry of myth and legend. From the towering Greek titans to the colossal Norse beings, the Chinese Pangu  or even the biblical Goliath, the allure of these larger-than-life figures has persisted. Amidst this array of tales, one peculiar giant claims attention—the enigmatic Kap Dwa.

Purportedly a Patagonian giant unearthed off the coast of South America, Kap Dwa's colossal frame is not its sole peculiarity; it boasts an astonishing two heads. The tantalizing question lingers: Could this giant be more than a fantastical tale? While scientific plausibility suggests the potential existence of such a giant being, the shadow of P. T. Barnum's influence and the absence of expert scrutiny cast a veil of skepticism over Kap Dwa's authenticity.

English sailor offering bread to a female Patagonian giant from the first Italian edition of John Byron’s ‘A Voyage Round the World in His Majesty’s Ship the Dolphin.’ (London, 1767). (Princeton)

English sailor offering bread to a female Patagonian giant from the first Italian edition of John Byron’s ‘A Voyage Round the World in His Majesty’s Ship the Dolphin.’ (London, 1767). (Princeton)

Giants in Patagonia: The Origin of the Kap Dwa Giant Legend

Kap Dwa is supposedly a 12-foot-tall (3.66 meter) Patagonian giant whose body somehow made it to a museum in Baltimore, Maryland, USA. Patagonia has been considered a land inhabited by giants for a long time. In fact, legends of Patagonian giants have been traced back to a story told by the explorer Ferdinand Magellan.

During their travels, Magellan and his men stopped on the beaches of South America and went inland to explore. Having landed in Patagonia, it is said that they encountered natives twice the size of a normal man. This is probably because a few of the indigenous peoples of the region, namely the Tehuelche, do happen to be taller than the average European was at the time.

This height difference may have been exaggerated, leading to the long-standing European myth that Patagonia was a land of giants. However, it prompts contemplation—could there be a kernel of truth behind the legends? Is it conceivable that a few real giants once roamed the Patagonian landscapes, with Kap Dwa standing as a potential example of this extraordinary phenomenon?

Drawing representing the giant Kap Dwa. (CC BY SA)

The History (or Legend) of the Kap Dwa

There are two conflicting stories of the origin of the Kap Dwa giant. According to the first, Kap Dwa was encountered by Spanish sailors in around 1673 on the beaches of Patagonia. He was captured and taken onto their ship where they strapped him to the mast.

When he got free of the mast, he skirmished with them and was killed by a pike piercing his chest. Subsequently, in the 19th century, the preserved body found its way to Britain and later the United States. There, it became a focal point of numerous sideshows and freak shows, captivating audiences as a curious spectacle from the uncharted realms of the world.

Publicity to see Kap Dwa. (CC BY SA)

Publicity to see Kap Dwa. (CC BY SA)

An alternative account of Kap Dwa’s discovery suggests that the Patagonian giant was already dead when found on a beach, having been impaled by a spear through the chest. In this version of events, Paraguay natives stumbled upon the lifeless body and mummified it, incorporating it into their religious practices.

Subsequently, the British schooner captain, George Bickle, heard about this peculiar discovery, infiltrated Paraguay and stole the body. After this bizarre body snatching, he successfully brought it back with him to Britain.

In both versions, the body ends up in the hands of showmen who add it to their collection of curiosities. There remains some disagreement over its authenticity. Some believe it to be genuine, while others are convinced that it to be an elaborate hoax. Let us examine the evidence and see which one sounds more likely.

Full length image of the body of Kap Dwa. (CC BY SA)

Is a Two-Headed 12-Foot Man Even Possible?

Although a real two-headed giant seems far-fetched, on par with discovering a real dragon or a real troll, it is not actually as unlikely as it sounds. Let us first examine the creature’s unusual height.

There have been people of unusual stature due to the condition known as gigantism. The tallest person in recorded history for which there is indisputable evidence is Robert Wadlow (1918-1940) who was 8 feet 11 inches (2.47 meters) tall and still growing when he suddenly died at the age of 22.

Postcard of Robert Wadlow with his father. (Public domain)

Although people have been found who are over 8 feet tall (2.44 meters), no living people or skeletal remains (for which the evidence is beyond dispute) have been found that are 12 feet tall (3.66 meters). Although it may be possible for a human to grow to that size, increasing health complications make it more difficult for someone to reach that height and survive.

The reason that Wadlow died is because his feet developed blisters because of the enormous weight on them. Over time, these blisters became infected, leading to complications that ultimately proved fatal. These health problems would only get worse for someone even taller.

People and animals with multiple heads have also been identified. One of the ways that conjoined twins can form is a condition called dicephalic parapagus, in which the twins will appear to have one body and two heads. Again, most cases do not survive infancy let alone to adulthood, but there are a few rare cases that do.

The two most famous examples would be the Italian brothers Giovanni and Giacomo Battista Tocci (1875/1877-1940?) and the American sisters from Minnesota named Abby and Brittany Hensel (1990-present). The chances of survival for dicephalic parapagus twins are increased if their vital organs are doubled so that each twin has a separate heart, stomach, set of lungs, etc. It is thus possible for dicephalic parapagus twins to become biologically successful adults, even though it is very rare.

1880's cabinet card photograph of the Tocci Brothers by Obermiller & Kern. It was sold by the Tocci Brothers. (Public domain)

Medical Knowledge vs the Legend of Kap Dwa

For Kap Dwa to be genuine, we'd have to suppose two highly unlikely scenarios simultaneously. We'd need to presume that dicephalic parapagus twins were born with yet another rare and lifespan-reducing disorder, gigantism. Somehow, they overcame all the health problems related to both conditions and became strong, healthy adults capable of engaging in combat with a band of sailors. While not impossible, this makes the story far more unlikely and it therefore requires additional evidence.

The body was allegedly examined by physicians in the 1960s who said that it showed no obvious signs of being fake. No other experts appear to have examined the body either to determine if it is genuine or if it had the internal anatomic requirements to be likely to survive as a set of dicephalic parapagus twins.

The mummy of Kap Dwa. (CC BY SA)

More Doubt Arises in Relation to the Kap Dwa Giant

Another problem with the authenticity of the body is its association with Phineas Taylor Barnum. P. T. Barnum was a 19th century showman, businessman and politician known for shows in which he would display creatures or items which he claimed to be the remains of mythical creatures or from distant lands.

Two famous examples would be the jackalope and the Fiji mermaid. Over time, P. T. Barnum has come to be known for telling tall tales. In fact, most of his specimens have turned out to be hoaxes, the most famous of which might be the Fiji mermaid. Any association with P. T. Barnum immediately casts doubt on the authenticity of Kap Dwa.

[Top] Fiji Mermaid, in the Folklore section at the Haus der Natur (House of Nature), a natural history collection in Salzburg, Austria. (CC BY NC SA 2.0) [Bottom] P. T. Barnum’s Fiji mermaid. (Public domain)

[Top] Fiji Mermaid, in the Folklore section at the Haus der Natur (House of Nature), a natural history collection in Salzburg, Austria. (CC BY NC SA 2.0) [Bottom] P. T. Barnum’s Fiji mermaid. (Public domain)

Furthermore, there is a strange artform known as rogue taxidermy which consists of reconstructing corpses to look like mythical creatures such as dragons, fairies, goblins and even giants. This is not practiced very often today, but it was popular in the 19th and early 20th centuries. A two-headed Patagonian giant would be a likely candidate for a specimen to be made by rogue taxidermists.

Although it is scientifically possible for Kap Dwa to be genuine as a set of dicephalic parapagus twins who suffered from gigantism, the unlikelihood of this scenario, the associations of the specimen with a man known to have produced multiple hoaxes, and the fact that no one has examined the body since the 1960s all suggest that Kap Dwa is more likely an elaborate hoax. This remains the case until indisputable evidence can be found.

Top image: Detail of the two heads of Kap Dwa. Source: CC BY SA

By Caleb Strom


Alton Museum of History and Art. No date. “Robert Pershing Wadlow” in Alton Museum of History and Art. Available at:

Basaran, Sibel, et al. 2013. “Parapagus (dicephalus, tetrabrachius, dipus) conjoined twins and their rehabilitation” in  The Turkish Journal of Pediatrics 55.1: 99.

Simon, M. 17 September 2014. “Fantastically Wrong: Magellan’s Strange Encounter With the 10-Foot Giants of Patagonia” in Wired Magazine. Available at:



Hello Caleb,

Thank you for sharing your article it was very intriguing.

This may surprise you so all I have too say is for every continent where there are people living for all these people universally in every language to swear on Heaven & Earth; that Giant's other than Dinosaurs once walked the Earth clearly there has too be some Truth too this Giant Phenomenon.

I would of thought it impossible for People too turn in to a Tree then I saw the Learning Channel and oh boy a Man was becoming a Tree that Walked, what if they're weren't cameras and video rolling and someone said (in The Bible A Man said He saw Trees Walking after Christ began healing him of blindness) I saw a man turn in to a Tree an Walk.

Then people would say that's just a myth A man can't turn in to a Tree and Walk honestly that documentary was fascinating soon after Grey's Anatomy either Season 7 or 8 they did do an Episode about a Man turning in to a Tree.

I believe Meredith Grey's sister before the plane crash summed it up well but, I can't take the Lord's name in Vain.

Of course my favorite subject Enoch 3 Book of Giant's a two-headed giant would not surprise me; if memory serves me right I think the Greek Stories might mention two headed Giant's in its page's.

Until next time Caleb Goodbye!

Tsurugi's picture

Another possibility is that Kap Dwa was a pair of dicephalic parapagus twins that did not suffer from gigantism, but was instead a kind of genetic relict, a rare re-emergence of the genetic makeup of a true ancient hominid race of very tall people who had mated with ancestors of local tribes long ago.

I point this out to illustrate that the assumption any "giant" hominid must be a Homo Sap Sap that "suffers from gigantism" is incorrect. It is an assumption that sharply limits the scope of possibilities; a limit that is unwarranted imo.

The old black and white photo is disproportional to a human of that height, if you understand physiology and what is needed to support a tall frame and at what height bone structure changes. You'd have to see one of our old posts at tangatawhenua16 for that explanation keeping in mind out search for real tall skeletons in NZ which should be complete in 2018. The obvious point to most should be the items carefully placed over the centre of the body which if exposed would have revealed it was not one body.

While I agree such a creature defies plausibility, one factor should be considered. Two heads with two pituitary glands could produce enough human growth hormone to produce gigantism. With all other bizarre abnormalities that could take place in such a man, it remains possible this seemingly fabled man could have existed.

Currently, there are a set of conjoined twins in the UK who could well be mistaken for a two headed woman. Add either a double load of pituitary hormones (which these young women don't seem to suffer from) or another form of giantism and you have this man. But the skeleton really needs a proper examination.


Caleb Strom's picture


Caleb Strom is currently a graduate student studying planetary science. He considers himself a writer, scientist, and all-around story teller. His interests include planetary geology, astrobiology, paleontology, archaeology, history, space archaeology, and SETI.

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