A pug head.

This is What a Pug Skull Looks Like

Pugs. These alien-like, curly tailed creatures are beloved by so many for their quirky personalities and super cute looks. But it’s no secret that pugs look a lot different today than they did centuries ago.

Over the years, pugs have been bred to enhance certain features – flatter noses, rounder heads, and stockier bodies. These changes make for a dog that looks very distinct from their wolf ancestors.

Read on to learn about the pugs of the past, present, and future, what a pug skull looks like, and the challenges that pugs sometimes face due to selective breeding.

A pug in 1915.
A pug in 1915.

Pugs: Then and Now

Before we start on the science of pugs, we should discuss their history.

Pugs didn’t always look like this. When the breed originated, they looked quite different. Their ancient lineage can be traced back to before 400BC, so they’ve been around a long time. Like any other breed, their look has changed over the centuries.

A painting of a pug from 1802.
A painting of a pug from 1802.

Paintings and photographs of pugs from past centuries highlight how the breed has evolved. In paintings and engravings of the 18th and 19th centuries, pugs appear with longer legs and noses, and sometimes with cropped ears.

Back then, pugs were leaner, and their eyes weren’t quite as large. Their head was also more apple shaped, and they had fewer wrinkles.

The Painter and his Pug
Here’s a self portrait by artist William Hogarth called “The Painter and his Pug” from 1745.

While the pug body has certainly changed, the most drastic changes are to the face.

2003 vs 1927.

The modern pug’s appearance changed most drastically after 1860, when a new wave of pugs were imported directly from China. These pugs had shorter legs and the contemporary-style pug nose. In 1885, they were recognized by the American Kennel Club, and the breed standard was created to resemble the pugs we know today.

Pug Anatomy Today

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According to the American Kennel Club, pugs should be multum in parvo, meaning “much in little” in Latin. They’re a lot of dog packed into a compact, well knit, proportional body.

These sturdy creatures should also have a large, round head, with prominent eyes, and a strong, thick neck.

Their body should be short and stocky, with a muscular build and a wide chest. The tail should be curled as tightly as possible, sometimes resulting in the much loved and highly sought after double curl.

Pug Skull

So, what does the skull of a pug today look like? Here you go:

Pug skull

Not exactly cute when missing muscles, wrinkles, and eyeballs, but I wouldn’t classify any skeleton as cute, so it’s ok.

It’s particularly striking when you compare it to a different breed’s skull, say a German Shepherd. Keep reading to learn more.

Pug Skull vs Normal Dog Skull

When people ask to see a “normal” dog skull, they mean a dog without a flat face. Flat-faced dogs, or brachycephalic breeds, are normal too!

So, let’s look at a pug skull vs. a non-brachycephalic breed skull. Here is a pug skull, in the foreground, and a German Shepherd skull, in the background.

As you can easily see, they’re quite different. It sort of looks like the elongated snout of the German Shepherd has been pushed against a wall and flattened, hence the term “flat-faced breed.”

For a different comparison, here is what a pug skull looks like next to a wolf skull.

The wolf more closely resembles the German Shepherd. The pug looks like a whole other species. But it’s still a dog, just like the Shepherd.

Pug Health Issues

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The changes to pug genetics that have resulted from selective breeding have caused certain health issues to which modern pugs are more prone.

Since pugs lack prominent skeletal brow ridges, they are susceptible to eye injuries such as proptosis, scratched corneas, and entropion.

Their flat faces can also cause issues. Pugs are brachycephalic dogs, or flat faced dogs, along with other breeds like English Bulldogs, French Bulldogs, Boxers, Pekingese, and Shih Tzus. They have compact breathing passageways, which can lead to breathing difficulties.

Their flat faces also leave them unable to efficiently regulate their temperature through evaporation from their tongue, by panting. As a result, high temperatures and excessive heat can be dangerous for a pug.

Contemporary Changes in Pug Breeding

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While some have silently taken issue with the way pugs have been bred, others are stepping up to try and make a difference.

In 2016, the British Veterinary Association’s (BVA) issued a warning to the public, and recommended they think twice before buying a brachycephalic breed.

The Dutch took things a step further. In 2014, the Dutch government created laws designed to protect the future welfare of some 20 brachycephalic breeds by outlawing certain, more detrimental aspects of “traditional” breeding.

The Dutch government also developed a traffic light system that measured the head, using red, orange, and green classifications to regulate breeding. The Dutch Kennel Club (Raad van Beheer) even stopped giving pedigrees to dogs with short muzzles.

They began to enforce the laws in 2019. The move was made to ensure brachycephalic breeds were bred with longer snouts, changing the breed standards.

Final thoughts

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As a pug lover and pug owner, it’s sad to face the facts of what selective breeding has done to this adorable breed.

However, I am not quick to judge – this is an issue that pertains to many breeds. German Shepherds have curved backs, Dachshunds have low and long backs, etc. There are pros and cons to controlling which two dogs mate and how a breed develops.

Pug owners should want to do what’s best for their dogs, so they can live healthy, enriched, and long lives. If that means the breed must change, then so be it.

What are your thoughts? I’d love to hear from you in the comments!

Enjoy more pug stuff here.

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Read on to learn about the pugs of the past, present, and future, what a pug skull looks like, and the challenges that pugs sometimes face due to selective breeding.

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One Comment

  1. I’m a Boston Terrier mama and when I get my next BT I’m looking at breeders who are breeding for longer snouts. I love their personalities (and sweet faces), and I also want them to be as healthy and long-lived as possible! I am all for the breeds reverting back to having longer snouts, and for us to take care to alter other bone structure issues in other breeds as you pointed out! We love our sweet fur babies.

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