GENETIC MARKERS FOUND FOR THE COLORATION OF HORSES PAINTED IN EUROPEAN CAVES:

Horses, Lascaux, France.

Internet photo, Public domain.

Students of rock art have learned to always be on the lookout for representations of rare or extinct animals as a guide to their actual appearance. This is a case of a cave painting of animals that were for some time thought to be imaginary or symbolic, and now have been proven to be real. On January 18, 2020, I revisited the question of the authenticity of the spotted horses of Pech-Merle Cave in France. Genetic analysis of ancient horse fossils has provided markers that can be used to identify the color of the animal when it was alive. Not only has the existence of spotted horses been proven by genetic analysis, but genetic studies have also given us information on the color and confirmation of other Paleolithic wild horses - Equus ferus ferus.

Horse, Lascaux, France.

Internet photo, Public domain.

"Prehistoric representations of animals have the potential to provide first-hand insights into the physical environment that humans encountered thousands of years ago and the phenotypic appearance of the animals depicted. However, the motivation behind, and therefore the degree of realism in, these depictions is hotly debated and it has yet to be shown to what extent they have been executed in a naturalistic manner.

Neuropsychological explanations include 'hyperimagery,' in which an internally generated image is perceived in external space, whereas others have argued for shamanistic significance or simply art for art's sake. Some paleontologists argue that cave paintings are a reflection of the natural environment of humans at the time, but not all researchers agree with this opinion." (Pruvost et.al. 2011:1)

Horses, Chauvet Cave, France. www.bradshawfoundation.com

In a nutshell, the argument has been whether the animal depictions represent the appearance of real animals, or whether they represent "spirit animals" of some sort. As "spirit animals" their overall appearance (shape, coat color, conformation, etc.) need not be considered as representative of a real horse.

Prewalski horses from

Chauvette Cave, France.

www.haut-thorenc.com

"Where animal species can be confidently identified, horses are depicted at the majority of these sites. With more than 1,250 documented depictions (~30% of all animal illustrations) ranging from the Early Aurignacien of Chauvet to the Late Magdalenian (several post-12-kyBP sites in France and Spain), and from the Iberian Peninsula to the Ural mountains, horses are the most frequent of the more than 30 mammal species depicted in European Upper Paleolithic cave art. Depictions are commonly in a caricature form that slightly exaggerates the most typical 'horsey' features.

Although taken as a whole, images of horses are often quite rudimentary in their execution, some detailed representations, from both Western Europe and the Ural mountains, are realistic enough to at least potentially represent the actual appearance of the animals when alive. In these cases, attributes of coat color may also have been depicted with deliberate naturalism, emphasizing colors and patterns that characterized contemporary horses. For example, the brown and black horses dominant at Lascaux and Chauvet, France, phenotypically match the extant coat colors bay and black. (Pruvost et.al. 2011:2-3)

Przewalskis horse, 

Wikipedia.

"In a 2009 analysis of DNA from the bones of nearly 90 ancient horses dated from about 12,000 to 1000 years ago, researchers found genetic evidence for bay and black horse colors." (Balter 2011)

Wild horse reconstructions.

Wikipedia

"The researchers, led by geneticists Arne Ludwig of the Leibniz Institute for Zoo and Wildlife Research in Berlin and Michael Hofreiter of the University of York in the United Kingdom, analyzed DNA from an older sample of 31 prehistoric horses from Siberia as well as Eastern and Western Europe ranging from about 20,000 to 2200 years ago. They found that 18 of the horses were bay, seven were black, but six had a genetic variant - called LP - that corresponds to leopardlike spotting in modern horses. Moreover, out of 10 Western European horses estimated to be about 14,000 years old, four had the LP genetic marker, suggesting that spotted horses were not uncommon during the heyday of cave painting." (Balter 2011)

So, genetic confirmation of not only bay coloration, but black horses as well was found, as well as the final proof of spotted horses in the Paleolithic era, reinforcing the idea that cave art can indeed give us valuable insights into the extant animal life of prehistoric times.

NOTE: Some images in this posting were retrieved from the internet with a search for public domain photographs. If any of these images are not intended to be public domain, I apologize, and will happily provide the picture credits if the owner will contact me with them. For further information on these reports you should read the original reports at the sites listed below.

REFERENCES:

Balter, Michael,

2011 Was the Spotted Horse an Imaginary Creature?, November 7, 2011, Science Magazine, https://www.sciencemag.org/news/2011/11/was-spotted-horse-imaginary-creature

Pruvost, Melanie, Rebecca Bellone, Norbert Benecke, Edson Sandoval-Castellanos, Michael Cieslak, Tatyana Kuznetsove, Arturo Morales-Muniz, Terry O'Connor, Monica Reissmann, Machael Hofreiter, and Arne Ludwig,

2011 Genotypes of Predomestic Horses Match Phenotypes Painted in Paleolithic Works of Cave Art, Proceedings of the National Academy of Sciences of the United States, Nov. 15, 2011