The Guanches, the indigenous people of the Canary Islands, most likely had dark hair, brown eyes, and light to medium skin. That’s the picture emerging from ancient DNA analysis of pre-conquest remains, which lines up with some historical descriptions but contradicts the popular myth that Guanches were tall, blue-eyed, and blond.
What Ancient DNA Tells Us
The most direct evidence comes from a 2017 genomic study published in Current Biology, which analyzed pre-European conquest remains from the Canary Islands. Researchers extracted DNA from several Guanche individuals and used specialized prediction tools (the same systems forensic scientists use to estimate appearance from DNA) to reconstruct likely physical traits. The individual with the best-preserved DNA showed brown eyes, dark hair, and light or medium skin. The other individuals in the sample, though their DNA was less complete, pointed to the same combination of traits.
This suggests a fairly consistent look across the group studied: a Mediterranean or North African appearance rather than a Northern European one. The Guanches’ closest genetic relatives were, and still are, the Berber and other indigenous populations of North Africa, which makes this phenotype unsurprising.
The Blond Guanche Myth
For centuries, European writers described the Guanches as unusually tall, fair-skinned, and often blond or red-haired. These accounts fueled all sorts of theories linking the Guanches to lost civilizations, from Atlantis to the Vikings. Some Spanish chroniclers in the 1400s noted that certain islanders, particularly on Tenerife, were lighter in complexion than expected for people living at the latitude of the Sahara.
There are a few explanations for the disconnect between these accounts and the DNA evidence. First, European chroniclers often exaggerated or romanticized the people they encountered. Second, light or medium skin on people living in a subtropical island climate may have genuinely stood out to observers who expected darker skin at that latitude. Third, some degree of natural variation certainly existed. A population can be predominantly dark-haired while still producing individuals with lighter coloring, especially given the known diversity within North African populations, where lighter eyes and reddish hair occasionally appear.
It’s also worth noting that mummified remains can be misleading. Hair pigment degrades over time, and dark hair on mummies sometimes appears reddish or lighter than it was in life, which may have reinforced the blond narrative among early European observers who examined Guanche burial sites.
Body Type and Stature
Skeletal evidence gives us information beyond what DNA can predict. Studies of Guanche bones consistently show a robust, physically active population. Average male height has been estimated at around 170 to 174 cm (roughly 5’7″ to 5’9″), which was notably tall compared to the average European of the 1400s. Women averaged somewhat shorter, in line with typical differences. Their bones show strong muscle attachment sites, reflecting a demanding lifestyle that involved herding goats across volcanic terrain, farming, and, on some islands, climbing steep mountain paths daily.
Dental analysis shows relatively good teeth compared to grain-dependent agricultural populations in mainland Europe, though wear patterns suggest a diet heavy in gritty, stone-ground grain and dried meat. Skull measurements historically placed the Guanches into a “Cro-Magnon” type, a now-outdated classification that basically described broad faces and prominent brow ridges. Modern analysis is more cautious, but Guanche skulls do tend to show robust facial features consistent with their North African heritage.
North African Roots
The Guanches’ appearance makes the most sense in context of where they came from. Genetically, they cluster closely with ancient and modern Berber-speaking populations from Morocco, Algeria, and Tunisia. They likely arrived in the Canary Islands sometime during the first millennium BCE, probably in multiple waves of migration from the North African coast, which sits only about 100 km from the nearest island.
Once on the islands, the Guanches were remarkably isolated. They apparently lost or never had seafaring technology, meaning there was little to no gene flow between islands or back to the mainland for over a thousand years. This isolation may have amplified certain traits on individual islands through genetic drift, which could partly explain why European observers noted physical differences between the populations of different islands. The people of Gran Canaria, for instance, were sometimes described differently from those on Tenerife.
What Remains in Modern Canarians
The Spanish conquest of the Canary Islands, completed in 1496, dramatically reduced the Guanche population through warfare, enslavement, and disease. But the Guanches didn’t disappear entirely. Studies of mitochondrial DNA (inherited from mothers) in modern Canary Islanders show that indigenous lineages make up a significant portion of the gene pool, with estimates ranging from roughly 40 to 60 percent on the maternal side depending on the island. Paternal lineages show much more European contribution, reflecting the colonial pattern of European men partnering with indigenous women.
So the Guanche look, to some degree, persists. Modern Canary Islanders carry a blend of indigenous North African, Iberian, and sub-Saharan African ancestry, and many share the same combination of dark hair, brown eyes, and olive-to-light skin that the DNA evidence attributes to their pre-conquest ancestors.