The American Bully, Bulldog, French Bulldog, Olde English Bulldogge, Shorty Bull and Pacific Bulldog are separate modern breed identities with different standards, histories, proportions and structural requirements.
The American Bully developed in the United States primarily from American Pit Bull Terrier-based stock with documented influence from additional bull breeds. That shared ancestry helps explain why some American Bullies resemble bulldog breeds without actually being those breeds.
- American Bully: modern companion breed with Pocket, Standard, Classic and XL varieties.
- Bulldog: the modern breed commonly called the English Bulldog.
- French Bulldog: smaller companion bulldog identified by compact scale and characteristic bat ears.
- Olde English Bulldogge: separate modern reconstructed bulldog with its own standard and history.
- Shorty Bull: independent compact bulldog with its own height, bite and structural standard.
- Pacific Bulldog: independent compact bulldog with separate ABKC size, bite and body requirements.
Bottom line: shared ancestry can explain resemblance. It does not erase modern breed identity.
Important: Bulldog and American Bulldog Are Not the Same Breed
In this guide, Bulldog refers to the modern breed commonly called the English Bulldog. The American Bulldog is a separate breed and is not one of the five bulldog breeds in the primary comparison.
Likewise, American Bully and American Bulldog are separate breeds despite their similar names.
American Bully vs 5 Bulldog Breeds: Quick Comparison
| Breed | Size Context | Bite | Topline / Body | Other Useful Clue | Strongest Identification Evidence |
|---|---|---|---|---|---|
| American Bully | Pocket through XL varieties | Scissor preferred; undershot faulted | Compact, muscular and comparatively square | Natural medium tail expected under the standard | Pedigree + breed type + mature class height |
| English Bulldog | Low-set medium bulldog | Breed-specific undershot jaw relationship | Distinctive Bulldog topline and lower silhouette | Characteristic Bulldog head and expression | Head + bite + topline + pedigree |
| French Bulldog | AKC show standard: no more than 28 lb | Breed-specific jaw standard | Small, compact companion outline | Characteristic upright bat ears | Scale + ears + pedigree |
| Olde English Bulldogge | Medium muscular bulldog | Breed-specific standard | More functional and athletic bulldog outline | Modern reconstructed breed identity | Pedigree + proportions + written standard |
| Shorty Bull | ABKC: 15 inches and under | Undershot required | Very compact bulldog structure | Breed-specific short-tail standard | Pedigree + bite + height |
| Pacific Bulldog | ABKC: 15–17 inches; 50–70 lb | Slightly undershot | Square, powerful bulldog body | Separate ABKC topline and rear requirements | Pedigree + bite + structure |
Published measurements and structural traits provide context. They are not enough to prove breed identity by themselves.
What Defines an American Bully?
Before comparing the American Bully with five bulldog breeds, it helps to establish the correct American Bully baseline.
The current ABKC American Bully standard describes a dog that should give the impression of substantial strength for its size, with a compact muscular body, heavy bone and a broad, substantial head.
The standard also creates an important boundary: breed type should not be exaggerated until normal function is compromised.
ABKC faults an excessively shortened muzzle that interferes with normal breathing and expects powerful, unrestricted movement.
American Bully Size Varieties
- Standard
- Classic
- XL
These are varieties within the American Bully breed—not separate breeds.
Official ABKC Pocket Height
Males: 14 inches to under 17 inches at the withers.
Females: 13 inches to under 16 inches at the withers.
Pocket dogs should retain recognizable American Bully breed type while standing shorter than the Standard variety.
For mature-height interpretation and measurement guidance, see Venomline’s Pocket Bully Size Guide.
American Bully Type Must Be Evaluated as a Whole
- Broad, substantial head
- Short-to-medium broad muzzle
- Open nostrils
- Muscular neck and shoulders
- Broad, deep chest
- Substantial bone
- Compact muscular body
- Comparatively square overall outline
- Balanced front and rear
- Powerful, unrestricted movement
- Breed-appropriate feet and tail
A massive head cannot compensate for poor movement. A short dog is not automatically a Pocket Bully. A wide chest does not establish breed identity.
The entire dog has to fit together.
Why Are American Bullies and Bulldogs So Often Confused?
Several modern bull and bulldog breeds share visual characteristics inherited from related ancestry or produced through similar selection for strength, muscularity and compact proportions.
Place an American Bully, English Bulldog, Olde English Bulldogge, Shorty Bull and Pacific Bulldog side by side and you may see broad skulls, short coats, substantial bone, wide chests and muscular bodies.
Those similarities are real.
They are also incomplete.
Breed identity is established through the relationship among pedigree, population history, registry classification, mature measurement, head construction, bite, topline, tail, proportions, movement and the written standard breeders are selecting toward.
Is an American Bully Actually a Bulldog?
No. The American Bully is a distinct modern breed with documented bull-breed ancestry and bulldog influence. It is not simply another name for the English Bulldog, Olde English Bulldogge, Shorty Bull or Pacific Bulldog.
Dog breeds develop from earlier canine populations. A contributing ancestor does not mean every descendant remains the original breed indefinitely.
The American Bully developed through generations of selective breeding toward its own combination of companion temperament, substance, muscularity, structure and recognizable breed type.
For deeper history, classes, temperament and structural information, see Venomline’s American Bully Breed Guide. That page should continue to own broad “what is an American Bully?” search intent.
American Bulldog Breeder Spotlight: Grand Future Kennel
Grand Future Kennel has bred American Bulldogs since 2000 and has built a notably well-documented program around generations of dogs, mature productions and long-term program history.
Their website documents 13 Grand Champions and 35 Champions across nine countries. Just as importantly for researchers, Grand Future makes substantial historical information about the program publicly available.
Venomline respects programs willing to show mature dogs, history and long-term production rather than presenting only isolated puppy photographs.
See their American Bulldog champion history.
American Bully vs English Bulldog: What Is the Difference?
The modern English Bulldog is generally lower and built around a different head, jaw, topline and overall silhouette. A correct American Bully should remain recognizably American Bully rather than resembling an English Bulldog with American Bully styling.
Breed Example: GCHG CH Cherokee Legend Encore “Star”
A particularly strong example of the modern Bulldog is GCHG CH Cherokee Legend Encore, known as “Star.”
Star won Best in Show at the 2022 AKC National Championship Presented by Royal Canin after competing in an event featuring more than 5,300 dogs. She became the first Bulldog to win the AKC National Championship.
Star is owned by Alaina Moulton, Kevin Mason and Natalie Mason and was bred by Cody T. Sickle, Sherry Hazelett and Connie A. Chambers.
Cody Sickle and the Cherokee Legend program deserve particular recognition. Building a multi-generation program capable of producing dogs competitive at that level requires consistency, selection and long-term commitment.
Learn more about Cherokee Legend Bulldogs and read the official AKC account of Star’s National Championship victory.
American Bully vs English Bulldog Head and Muzzle
Both breeds can possess broad skulls, but their heads are constructed toward different standards.
The American Bully standard calls for a broad, substantial head and short-to-medium muzzle while preserving functional breathing.
The AKC Bulldog uses a separate breed-specific facial structure, jaw relationship and expression.
American Bully vs English Bulldog Size
There is no single universal American Bully height because the breed includes Pocket, Standard, Classic and XL varieties. The English Bulldog follows its own breed-standard proportions rather than the American Bully class system.
That makes direct size comparisons less useful than they first appear. Mature height should be interpreted together with body proportions, breed type and pedigree.
American Bully vs English Bulldog Topline
The topline is one of the strongest visual distinctions in profile.
ABKC describes the American Bully back as fairly short to medium and rejects a roached or wheel back.
The English Bulldog presents its own characteristic breed-specific rise through the loin and overall silhouette.
American Bully vs English Bulldog Body Proportions
A correct American Bully should present a muscular, comparatively compact and balanced outline without reproducing the English Bulldog’s characteristic body construction.
The Bulldog is lower set and uses a different relationship among shoulders, back, loin, rear and overall body length.
American Bully vs English Bulldog Bite
The American Bully standard prefers a scissor bite and faults undershot bites.
The English Bulldog uses a different breed-specific jaw relationship, making bite another useful identification clue.
American Bully vs English Bulldog Tail
Tail structure is another secondary clue because the two standards do not describe the same ideal.
Tail type should never be used by itself, but together with pedigree, bite, topline and body proportions it can strengthen identification.
American Bully vs English Bulldog Movement
Static photographs can hide structural differences. Movement often reveals them.
Watch reach, rear drive, topline stability, feet, balance and whether the dog moves without obvious interference.
American Bully vs French Bulldog: What Separates Them?
The French Bulldog is substantially smaller and has a different breed identity, most obviously expressed through its characteristic bat ears, compact scale, head construction and topline.
The AKC French Bulldog is among the easier breeds in this comparison to identify once scale and ear structure are considered.
The AKC standard limits show weight to 28 pounds and describes the distinctive upright bat ear as a defining feature.
Why French Bulldogs and Pocket Bullies Still Get Compared
- Both can be compact companion dogs.
- Both have short coats.
- Both can appear muscular relative to size.
- Both can have broad heads.
- Both are commonly selected as close household companions.
Those similarities do not make the breeds interchangeable.
Breed Example: Sullybee Chambord's My Heart's Been Stung “Ewald”
French Bulldogs are sometimes reduced to a stereotype of decorative companion dogs, which makes Ewald an especially useful example.
Sullybee Chambord's My Heart's Been Stung FDC CAA DCAT SWA SCE RATCHX4 CGC ATT FTR, known as Ewald, is owned by Rick and Kathleen Paine of Sullybee French Bulldogs.
Ewald became the first dog—not merely the first French Bulldog—to earn the Retriever-level title in the AKC Fetch program. His Barn Hunt accomplishments were also significant enough for the French Bull Dog Club of America to create the Ewald Award for Outstanding Lifetime Achievement in Barn Hunt.
Venomline appreciates breeders and owners who demonstrate what their dogs can actually do rather than presenting them only in a stack. Ewald is an excellent example of versatility, trainability and owner commitment.
Visit Sullybee French Bulldogs and review the French Bull Dog Club of America record for Ewald.
American Bully vs Olde English Bulldogge: Why Is This Comparison Harder?
The Olde English Bulldogge can be one of the more convincing American Bully look-alikes because both may be muscular, broad-headed and substantial. They remain separate modern breeds with different histories and written standards.
The UKC Olde English Bulldogge standard describes a muscular, medium-sized dog while emphasizing balanced proportions, fluid movement and function.
Why the OEB Is One of the Hardest American Bully Look-Alikes
The OEB creates more genuine identification difficulty than the French Bulldog because both OEBs and American Bullies can present athletic muscle, substantial heads, broad chests and functional movement.
The distinction becomes clearer when pedigree, proportions, jaw relationship, topline and the written standard are considered together.
The modern Olde English Bulldogge traces to a reconstruction effort beginning in the 1970s, while the American Bully developed later as its own companion-oriented bull breed.
American Bully vs OEB Structure
The American Bully generally carries a more distinctly American Bully combination of compactness, substance, heavy bone and breed-specific head type.
The OEB preserves its own bulldog outline and should not simply look like an American Bully with natural ears.
American Bully vs OEB Bite and Function
Jaw relationship should be evaluated against the correct breed standard rather than against a generic idea of what a “bully” should look like.
The OEB standard also places meaningful emphasis on athletic function and fluid movement, while the American Bully is evaluated against its own structural requirements.
Breeder Spotlight: Chris + Gina / Bulky Built
We spent time going through Chris + Gina's website, and this is one of those programs where the passion behind the dogs comes through quickly.
Their presentation goes beyond simply listing puppies. They invest in documenting their dogs, Bulldogge history, breeding philosophy, community projects and the ideas behind their program.
Their video content is especially useful for breed education because readers can see dogs and people in motion instead of relying entirely on polished static photographs. We probably watched their homepage video longer than we intended to—and that is meant as a compliment.
Chris and Gina describe their work around preserving type, building community, documenting history and leaving something meaningful for the next generation. That level of involvement deserves respect.
Explore Chris + Gina / Bulky Built or watch their Olde English Bulldogge video.
Olde English Bulldogge vs Old English Bulldog
Olde English Bulldogge is the modern breed name.
Old English Bulldog is generally used in historical discussion of earlier bulldog populations.
American Bully vs Shorty Bull: Is a Shorty Bull a Pocket Bully?
No. Shorty Bull is a separate compact bulldog breed. Pocket is a height variety within the American Bully breed.
Shorty Bull Height
The ABKC Shorty Bull standard sets the breed at 15 inches and under.
Pocket American Bully males measure 14 inches to under 17 inches and females 13 inches to under 16 inches.
Those ranges overlap, demonstrating why height alone cannot establish breed identity.
Shorty Bull Bite
ABKC calls for an undershot bite in the Shorty Bull.
The American Bully standard faults undershot bites.
That is one of the most useful structural distinctions in this entire comparison.
Shorty Bull Tail
The Shorty Bull standard also handles tail structure differently from the American Bully standard.
Tail, bite, height, pedigree and overall type together provide much stronger evidence than head width alone.
Breed History Spotlight: Jamie Sweet / Blue River
It is difficult to discuss the Shorty Bull responsibly without giving Jamie Sweet proper credit.
Jamie Sweet is identified by the Bull Breed Coalition as a foundational figure in the Shorty Bull and founder of its original registry framework.
Developing a recognizable breed requires years of selection, pedigree records, a defined standard and a population that other breeders can continue working with.
Venomline respects breeders who put in that long-term work. Jamie Sweet and the early Blue River program are an important part of the Shorty Bull story.
Watch The Shorty Story and visit the Bull Breed Coalition.
American Bully vs Pacific Bulldog: What Is a Pacific Bulldog?
The Pacific Bulldog is a separate compact bulldog maintained under its own ABKC standard. Its size can overlap some American Bullies, but its bite, body, topline and other structural requirements differ.
The ABKC Pacific Bulldog standard describes a compact, powerful and athletically built bulldog on a smaller-to-mid-sized frame.
Pacific Bulldog Size
- Height: 15–17 inches
- Weight: 50–70 pounds
Why a Pacific Bulldog Can Be Mistaken for a Pocket Bully
The published 15–17 inch Pacific Bulldog height range directly overlaps part of the American Bully Pocket range.
A 15- or 16-inch muscular dog therefore cannot be identified as a Pocket Bully from height alone.
Pacific Bulldog Bite
ABKC calls for a slightly undershot bite in the Pacific Bulldog.
The American Bully standard faults undershot bites.
Bite therefore becomes especially useful when height and overall mass overlap.
Pacific Bulldog Body and Topline
The Pacific Bulldog follows its own square-body, topline and rear-construction requirements.
Those differences matter because two compact dogs can occupy similar height ranges while being built toward entirely different standards.
Pacific Bulldog History: Separate Standards From Origin Claims
Public documentation for the Pacific Bulldog’s current ABKC standard is easier to verify than every claim concerning the breed’s earliest developmental history.
Venomline therefore treats the current written standard as authoritative for breed comparison while separating historical breeder narratives that require additional primary documentation.
Breeder Spotlight: Boss Status Bullies
Boss Status Bullies is a useful program for readers who want to see actual Pacific Bulldogs rather than trying to understand the breed from a written standard alone.
Their dedicated Pacific Bulldog page documents dogs including Parcelli's Secret Sauce, “Boss,” and gives readers an accessible look at dogs behind the program.
We appreciate that Boss Status maintains a clearly labeled Pacific Bulldog section instead of blending every compact dog into generic “bully” terminology.
Pacific Bulldog Program Recognition: Impressive Bulls
Another program associated with the Pacific Bulldog community is Impressive Bulls / Pacific Bulldogs.
We respect breeders who continue working with less widely understood bulldog populations and give enthusiasts additional real-world examples to study.
Specific pedigree and historical line-breeding claims should be verified against breeder and registry records, but Impressive Bulls is worth recognizing as part of the broader Pacific Bulldog community.
How Can You Tell an American Bully From Similar Bulldog Breeds?
Use a repeatable sequence: verify pedigree, measure mature height, evaluate the head and bite, compare topline and proportions, inspect the tail, then watch the dog move and breathe.
-
Verify pedigree and registry identity.
Documentation is stronger evidence than a social-media caption. -
Measure the mature dog at the withers.
Height can disprove impossible class claims but cannot prove breed by itself. -
Study the head as a complete system.
Evaluate skull, muzzle, nostrils, jaw, cheeks, eyes and ears together. -
Check the bite.
The American Bully, Shorty Bull and Pacific Bulldog do not use identical bite requirements. -
Read the topline.
Follow the dog from withers through back, loin, croup and tail set. -
Compare body proportions.
Look at overall balance rather than one exaggerated feature. -
Inspect the tail.
Different breed standards use different tail expectations. -
Watch movement.
Look for reach, drive, stability and freedom from interference. -
Evaluate function.
Comfortable breathing and stable movement matter.
Are Bulldogs and American Bullies Equally Brachycephalic?
No blanket statement is justified. Brachycephaly exists by degree, and research from French Bulldogs or Bulldogs should not automatically be assigned to every American Bully without breed-specific evidence.
French Bulldogs and English Bulldogs are established brachycephalic breeds, and peer-reviewed veterinary research has documented brachycephalic obstructive airway syndrome within these populations.
The American Bully standard itself creates a useful welfare boundary by faulting muzzle exaggeration that interferes with normal breathing.
What Does Veterinary Research Say About BOAS?
Peer-reviewed studies involving Bulldogs, French Bulldogs and Pugs have found that BOAS risk is associated with conformational factors including more extreme brachycephaly and stenotic nostrils.
Research also supports a breed-specific approach rather than assuming that every short-faced breed has identical respiratory risk.
See the PubMed research on conformational BOAS risk factors in Pugs, French Bulldogs and Bulldogs and the 2026 cross-breed BOAS study.
For deeper American Bully health coverage, use Venomline’s Pocket Bully Health Guide.
Why Breed Standards Matter More Than Social-Media Labels
Terms such as Pocket, Micro, Extreme, Compact, Mini, Short and Exotic can carry very different meanings depending on context.
A written breed standard creates criteria that can actually be tested.
- Does mature height fit?
- What bite is required?
- What should the topline look like?
- What tail structure is expected?
- How should the dog move?
- Which faults indicate exaggeration?
- What breed appears on the pedigree?
For Pocket vs Micro terminology, use Venomline’s Pocket Bully vs Micro Bully Guide.
What Should Buyers Verify When a Breed Label Is Unclear?
Start with documentation, then verify that the dog's mature size and structure are consistent with the breed being represented. Marketing labels should never replace pedigree, registry information and a written standard.
Venomline 10-Point Breed-Identity Verification Framework
- Ask for the registered breed and registry. Determine whether “Pocket,” “Shorty,” “Micro” or another label is being used as a formal class, breed name or marketing term.
- Review the pedigree. Confirm that the registered parents and ancestry match the breed being represented.
- Evaluate the parents. Adult parents provide far more information about mature type than puppy photos. Request current standing and moving video if you cannot evaluate them in person.
- Verify mature height claims. Height is particularly important when a seller represents an American Bully as Pocket.
- Use the correct written standard. Do not judge a Shorty Bull by American Bully rules or an American Bully by English Bulldog rules.
- Check bite and tail. These traits can be highly informative because a bite required in one breed can be a fault in another.
- Watch movement. Look beyond posed photographs and assess balance, reach, drive and obvious structural interference.
- Request verifiable health documentation. A claim that a dog is “health tested” should lead to identifiable test results or veterinary records.
- Study mature offspring when available. Repeated adult production can reveal more about a breeding program than one exceptional puppy photograph.
- Read the agreement before paying. Breed, registration, deposit terms, health provisions, delivery expectations and buyer obligations should be clear before money changes hands.
People Also Ask
Are American Bullies Bulldogs?
The American Bully is a distinct modern breed with documented bull-breed and bulldog influence. It is not another name for the English Bulldog, Olde English Bulldogge, Shorty Bull or Pacific Bulldog.
What Is the Main Difference Between an American Bully and English Bulldog?
The breeds differ in modern breed identity, proportions, bite preference, topline, movement and head construction. The American Bully is evaluated under its own breed standard and class system.
Is a Pocket Bully a Bulldog?
A Pocket Bully is an American Bully that falls within the Pocket adult-height range. Pocket is not a separate Bulldog breed.
Is a Shorty Bull the Same as a Pocket Bully?
No. The Shorty Bull is a separate compact bulldog breed. Its ABKC standard requires an undershot bite, while the American Bully standard faults an undershot bite.
Is a Pacific Bulldog an American Bully?
No. The Pacific Bulldog is maintained under its own ABKC standard. Its published height can overlap Pocket American Bullies, but its bite and structural requirements differ.
Are American Bullies Related to Olde English Bulldogges?
Registry histories identify Olde English Bulldogge influence in American Bully development, but the American Bully and OEB are maintained today as separate modern breeds.
Frequently Asked Questions
Which breed in this comparison requires an undershot bite?
The Shorty Bull standard calls for an undershot bite, while the Pacific Bulldog calls for a slightly undershot bite. The American Bully standard prefers a scissor bite and faults undershot bites.
Can height alone prove that a dog is a Pocket Bully?
No. Height determines whether an otherwise correctly identified American Bully fits the Pocket variety, but Shorty Bulls and Pacific Bulldogs can occupy overlapping height ranges.
How important is pedigree when identifying bully and bulldog breeds?
Pedigree is one of the strongest pieces of evidence because visual traits can overlap substantially. Structure and measurement should be used alongside documented ancestry rather than replacing it.
Why is topline useful when comparing American Bullies and Bulldogs?
Different breed standards describe different relationships among the shoulders, back, loin, croup and rear. A profile view can therefore reveal differences that are difficult to see from head-on photographs.
Does ear cropping identify an American Bully?
No. Ear cropping is a human cosmetic choice and is not reliable evidence of breed identity. Pedigree, proportions, bite, height and the written standard are more useful.
Which breed in this comparison is usually the smallest?
The French Bulldog is generally the smallest overall. The AKC show standard limits French Bulldogs to 28 pounds, while Pocket American Bully classification is determined primarily by adult height.
Are all short-faced bulldog breeds equally likely to have BOAS?
No. BOAS risk varies among breeds and individuals. Research supports using breed-specific assessment rather than assuming every short-faced breed has the same respiratory risk.
What should a buyer verify before purchasing a Pocket Bully?
Verify breed and registry identity, pedigree, parent information, mature height claims, health documentation, breeder terms and the written purchase agreement.
Can mixed or undocumented ancestry make breed identification difficult?
Yes. When pedigree documentation is incomplete, visual identification becomes less certain because several bull and bulldog breeds share overlapping physical traits.
Why should buyers watch a dog move instead of relying only on photos?
Movement can reveal balance, reach, rear drive, foot placement and structural interference that may not be obvious in posed or edited photographs.
Similar Type Does Not Mean the Same Breed
A broad head does not make every dog an American Bully.
Short height does not make every dog a Pocket Bully.
Bulldog ancestry does not make every descendant an English Bulldog.
The strongest identification combines pedigree, mature measurement, bite, topline, proportions, tail, movement and function.
Already know the American Bully is the breed you want? View current Pocket Bully puppies.
Respect for the Breeders Behind the Dogs
Breed comparison content can become unnecessarily tribal. That is not the purpose of this guide.
Venomline specializes in the American Bully, but respecting our own breed does not require pretending that quality dogs and serious breeders do not exist elsewhere.
We appreciate the work represented by Grand Future Kennel, Cherokee Legend Bulldogs, Sullybee French Bulldogs, Chris + Gina / Bulky Built, Jamie Sweet and the Bull Breed Coalition, Boss Status Bullies, and Impressive Bulls.
Strong programs are built over years, not through one viral post. We respect breeders who document their work, preserve history and give the public something meaningful to study.
Venomline Publication History & Temporal Precedence
This comparison guide is a new 2026 publication and retains its actual 2026 publication date. Venomline does not backdate newly created articles.
Venomline’s broader American Bully educational record predates this page by many years. The program’s documented publishing history traces from Texas Size Bullies into Venomline Pocket Bullies, with additional American Bully education published through BULLY KING Magazine and related properties.
A documented milestone is The Bully Bible: Everything You Need To Know About The American Bully, published by BULLY KING Magazine on May 30, 2017 under ISBN 9781370019083.
Historical records also document BULLY KING Magazine distribution through Apple’s iTunes/App Store ecosystem and Google Play, together with historical book-distribution or listing records involving Barnes & Noble, Apple/iTunes and Smashwords.
Because third-party catalogs change, Venomline distinguishes historical platform evidence from claims that a publication or app remains available on a particular platform today.
Venomline preserves original publication dates, legacy Texas Size Bullies material, ISBN records, original media, third-party distribution records, and independently timestamped archive captures—including Internet Archive Wayback Machine records where available—to document publication chronology and establish that specific works existed by particular dates.
These records provide evidence of temporal precedence for the specific works they document. Authorship, copying, ownership and legal significance should be evaluated work-by-work against the underlying source records.
For the broader historical record, see Venomline’s Texas Size Bullies to Venomline history, American Bully Breed Guide and The Bully Bible publication record.
Primary Standards & Evidence Reviewed
- ABKC — American Bully Standard
- ABKC — Shorty Bull Standard
- ABKC — Pacific Bulldog Standard
- UKC — American Bully Standard
- UKC — Olde English Bulldogge Standard
- AKC — Bulldog Breed Information
- AKC — French Bulldog Breed Information
- PubMed — Conformational Risk Factors for BOAS in Pugs, French Bulldogs and Bulldogs
- PubMed — 2026 Cross-Breed BOAS Study
- PubMed — 2026 Genetic Analysis of Respiratory Function in Bulldogs, French Bulldogs and Pugs
Veterinary information is educational and is not a diagnosis. Health concerns should be evaluated by a qualified veterinarian.