The man who dissected horses: George stubbs and the birth of pictorial science

Stubbs was neither a professional anatomist nor an academically trained painter from the Royal Academy. He was a stubborn autodidact, the son of a Liverpool tanner, who had grasped a simple yet explosive truth: to paint a horse like no one before him, he first had to understand it from the inside. For eighteen months, in that barn turned laboratory, he would dissect more than twenty horses, noting every detail with the precision of a surgeon and the eye of a poet. The result, The Anatomy of the Horse (1766), would not merely be a scientific treatise but a work of art in its own right—a bridge between scalpel and brush, between the Enlightenment and painting.

01The scalpel and the brush: when art meets science

What strikes one first in Stubbs’s anatomical plates is not their scientific coldness, but their almost sacred beauty. The horse’s muscles, stretched like lyre strings, seem to vibrate under a golden light. The bones, chalky white, sketch architectures more elegant than Palladio’s. Even the internal organs, rendered with surgical precision, compose a still life of strange poetry. "These are not technical drawings," writes art historian Judy Egerton, "but intimate portraits of a creature taken apart piece by piece, as if Stubbs sought to capture its soul along with its structure."

This approach was revolutionary. Before Stubbs, horses in painting were symbols—of power for kings, speed for hunters, nobility for aristocrats. Rubens painted them as mythological creatures, Van Dyck turned them into courtly accessories. Stubbs, however, treated them as subjects worthy of scientific study. His horse was neither a Platonic ideal nor a mere pet, but a living machine whose every mechanism demanded understanding. This obsession with anatomical truth aligned him more with Leonardo da Vinci than with his British contemporaries.

Yet Stubbs was no scholar. He had no medical training, and his dissections were driven by a purely artistic question: how to render life on canvas? His notebooks, preserved at the Royal Academy, reveal a method as methodical as it was poetic. He would begin by drawing the whole horse, then remove the layers of muscle one by one, noting at each stage how the silhouette changed. Sometimes, he hung skeletons from his studio ceiling to study the play of light and shadow on the bones. One plate in The Anatomy of the Horse even shows a flayed horse whose head, slightly tilted, seems to smile—a detail that has sparked much debate. Was it artistic license? A perspective error? Or simply a sign that, for Stubbs, even in death, the horse retained a form of dignity?

02Whistlejacket: when a horse becomes an icon

If The Anatomy of the Horse is Stubbs’s scientific work, Whistlejacket (1762) is his artistic masterpiece. This monumental painting—nearly three meters tall—depicts a chestnut thoroughbred rearing on its hind legs, without rider, without landscape, without any artifice. The horse fills almost the entire canvas, its glossy coat catching the light like polished bronze. Its gaze is both proud and melancholic, as if it knows it is becoming immortal.

The genesis of this work is as fascinating as the painting itself. Whistlejacket was a legendary racehorse, undefeated on English tracks. His owner, the Marquess of Rockingham, an enlightened aristocrat and patron of the arts, commissioned Stubbs to paint his portrait. But instead of depicting the horse with a jockey or in a hunting scene, as tradition dictated, Stubbs proposed a radical composition: the thoroughbred alone, against a neutral background, like an antique statue. The marquess, initially reluctant, eventually agreed—and the result was a shock.

For the first time, a horse was no longer an accessory but the absolute subject of a painting. Critics of the time were divided. Some saw a masterpiece of realism, others a provocation: how could a mere animal deserve a canvas as large as a royal portrait? Yet Whistlejacket quickly became one of England’s most famous paintings. Visitors to Wentworth Woodhouse, the marquess’s estate, reportedly stopped before the painting as if before a relic. Some even claimed the horse seemed to move, so precise was Stubbs’s rendering of life.

Today, Whistlejacket holds court at the National Gallery in London, where it continues to fascinate. X-rays have revealed that Stubbs initially painted a rider on the horse’s back before removing it. Why? Perhaps because he realized Whistlejacket needed no man to exist. In this painting, the horse is no longer a symbol of human power but a force of nature in its own right—a silent revolution that would change the course of animal art.

03The lion’s barn: when Stubbs invents animal drama

Though Stubbs is best known for his horses, his most surprising works may be those in which he stages them alongside lions. In Horse Attacked by a Lion (1769), a white stallion rears under the claws of a feline, its muscles taut, its mane bristling like flame. The composition is one of contained violence, almost cinematic. The lion, half-hidden in shadow, seems to emerge from nowhere, while the horse, lit by a raking light, embodies vulnerability before savagery.

These scenes of predation were a novelty in British art. At the time, lions were exotic creatures, rarely seen in Europe. Stubbs had likely never observed one up close—his felines were inspired more by travelers’ descriptions than reality. Yet their presence in his paintings was not incidental. In 18th-century England, in the midst of colonial expansion, the lion was often associated with Africa, and by extension, with the French enemy (France then being seen as an imperial threat). Some historians interpret these scenes as political allegory: the horse, symbol of British civilization, brought down by the wild beast, could represent the challenges of empire.

But Stubbs was not a politically engaged painter. His interest in lions was primarily aesthetic. He sought to capture movement, tension, the moment when life tips into death. In another version of the scene, A Lion Devouring a Horse (1763), the feline is already tearing into its prey beneath a stormy sky. The composition is more static, almost sculptural, as if Stubbs had wanted to freeze horror in marble. These works foreshadow the dark romanticism of Géricault and Delacroix, who, half a century later, would paint violence with the same intensity.

04The studio of mystery: how Stubbs worked

Few artists have left as few traces of their creative process as George Stubbs. No intimate journal, no letters detailing his methods—only a few sketchbooks and scattered testimonies. Yet by piecing together fragments of his studio, one discovers a man as meticulous as he was obsessive.

His first tool was not the brush, but the scalpel. Before painting a horse, he dissected it, sometimes for weeks. His Lincolnshire neighbors whispered that he was a sorcerer, a man who stole dead horses to unlock their secrets. The reality was less sensational but just as fascinating: Stubbs bought horses from the slaughterhouse, transported them to his barn-laboratory, and studied them layer by layer. He noted everything—the way muscles attached to bones, the texture of the skin, the curve of the hooves. Once the dissection was complete, he hung the skeletons from his studio ceiling to observe them from different angles.

For his paintings, he used techniques that anticipated 19th-century realism. He began with a monochrome underlayer, a grisaille, to establish volumes and shadows. Then he layered colors in glazes, a method that allowed for effects of transparency and depth. His palette was both restrained and subtle: ochres and earth tones for the horses, deep blues for landscapes, vivid reds for aristocratic accessories. Unlike his contemporaries, he avoided pure blacks, preferring mixtures of blue and brown to suggest shadow.

But what truly set Stubbs apart was his rejection of convention. While academic painters idealized their subjects, he sought truth, even when it was ugly. One of his sketches shows a horse with a deformed leg—a detail no one would have dared to depict at the time. For him, beauty lay not in perfection but in authenticity. This approach earned him as many admirers as detractors. Joshua Reynolds, president of the Royal Academy, dismissed him as a "painter of animals" without ambition. Yet it was precisely this obsession with detail that would make Stubbs a pioneer.

05The last secret: why was Stubbs forgotten, then rediscovered?

For nearly a century after his death, George Stubbs faded into obscurity. 19th-century critics found him too "literal," too "scientific" to be a great painter. The Impressionists, then the Modernists, deemed him outdated. It wasn’t until the mid-20th century that art historians began to reassess his work. In 1984, a retrospective at the Tate Gallery revealed to the public a Stubbs far removed from the "horse painter" stereotype: a complex artist at the crossroads of art and science, whose influence extended well beyond English stables.

Today, his legacy is everywhere. Veterinarians still use The Anatomy of the Horse as a reference. Animal painters, from Rosa Bonheur to Lucian Freud, cite his name with respect. Even filmmakers draw inspiration from him: the horses in War Horse (2011) or The Power of the Dog (2021) owe much to his realism. Yet one question lingers: why was Stubbs, so famous in his lifetime, so long neglected?

The answer may lie in his defiance of categories. Stubbs was neither an academic painter, nor a Romantic artist, nor a pure scientist. He was a bit of all three, and that made him unclassifiable. In a world where art and science were supposed to follow separate paths, he dared to blend them. Today, in an era of collaboration between artists and researchers, his approach seems more modern than ever. Perhaps that is why Whistlejacket continues to gaze at us with that strange melancholy, as if it knows its creator was ahead of his time.

06Epilogue: the horse that watches us

There is something strangely intimate about Stubbs’s horses. They are not distant animals, abstract symbols, but beings of flesh and blood—with their scars, their taut muscles, their gazes at once proud and vulnerable. When you stand before Whistlejacket at the National Gallery, you feel the horse watching you in return, as if waiting for an answer to a question you dare not ask.

Perhaps that question is this: what if art were not merely about beauty, but also about truth? Stubbs, by dissecting horses and painting them with almost cruel precision, reminded us that nature itself is a work of art—imperfect, violent, sublime. His paintings are not portraits but poetic autopsies, tributes to the complexity of the living.

Today, as the boundaries between art and science blur, his work resonates with surprising relevance. In a world where racehorses are cloned and animals genetically modified, the questions he posed two hundred and fifty years ago have lost none of their urgency: how far can we go in the pursuit of perfection? Where does art end and science begin? And above all, what do we lose when we forget to look at the creatures around us with the same curiosity as George Stubbs, the tanner’s son who became one of the greatest painters of his time?