If the Dog Pulls, What Pushes Back?
The physical problem that became BoneZone®
There is a simple piece of physics hiding inside the way a dog works substantial food: if the dog pulls, something must resist that pull.
Watch a dog with a large piece of food or a long-duration chew and the solution often happens automatically. The dog may pin the item with a paw, brace it against the ground, push it into a corner, wedge it against furniture, stand over it, change body position, or use body weight and leverage. In every case, the dog is creating resistance.
For years, that was the problem we were trying to solve with BoneZone®. We were not trying to solve dog nutrition, create a new kind of chew or develop a theory about what every dog should eat. We were addressing a mechanical problem:
If the dog pulls, what pushes back?
Food does not become mechanically irrelevant because it is nutritious
Dog-food discussions usually begin with composition, and that makes sense because nutrition matters enormously. Food also has physical properties, however, including size, shape, texture, hardness, toughness, exposed surfaces, connective tissue, edible and less-edible regions, and varying resistance to deformation or tearing. Those properties influence what the dog can physically do with the item.
A minced meal, a bowl of kibble, a substantial poultry section and a long-duration chew may all be described as food or feeding items, but they create very different mechanical interactions. That does not make one nutritionally superior to another. It means physical presentation is a separate variable.
Once we understood that distinction, describing BoneZone® as merely a bone holder no longer made sense. Holding is what the hardware physically does, but holding matters because it creates controlled external resistance.
The environment is already part of the feeding system
A loose substantial item does not exist in a vacuum. If a dog wants to tear something from the item, strip tissue, gnaw a particular surface or apply pulling force, the item must be restrained somehow. With a natural or larger food source, mass and surrounding structure can provide that resistance. In a domestic environment, restraint is often improvised through the dog's paws, the floor, lawn, dirt, a garden bed, furniture, a kennel corner or whatever else stops the item from moving.
All of those surfaces and objects become part of the mechanical system, which creates an obvious design question:
Why leave the resistance side of the feeding interaction to whatever happens to be nearby?
That is the question BoneZone® was built to answer.
The hardware came before the language
This part of our story matters because we did not sit around a table, invent the phrase Structural Feeding™ and then decide to manufacture a product that fitted the term. The sequence was the opposite: we spent years working on the apparatus before we understood that the broader approach needed a name.
Early 3D-printed versions evolved through repeated use and observation. We changed clamping arrangements, mounting methods, geometry and materials, moved further into CAD and eventually developed an extruded aluminium system designed to adapt to multiple domestic environments.
Phoenix, our Belgian Malinois, was central to that development because a large, powerful dog makes mechanical shortcomings difficult to ignore. If something moved, twisted, loosened or presented awkwardly, we saw the problem. The objective was practical: secure an appropriate substantial food or chew in a useful working position, rather than allowing the entire environment to become the restraint mechanism.
Only much later did we recognise that BoneZone® was doing something broader than holding a bone. The apparatus was introducing deliberate external structure into the physical feeding event, and we needed language for that. The term became Structural Feeding™.
Structural Feeding™ in mechanical terms
Our working definition is:
Structural Feeding™ is Petelli's term for a defined companion-animal feeding approach in which appropriate substantial foods and long-duration chews are presented against stable external physical structure, creating controlled resistance against which the dog can grip, pull, tear, scrape, lick, gnaw and work.
The mechanics can be reduced even further:
DOG FORCE → FOOD → CONTROLLED RESISTANCE → STABLE STRUCTURE
The dog applies force, the food transmits some of that force, and the apparatus and mounting provide resistance. That is the physical relationship BoneZone® was designed around.
The food has structure. Now the feeding environment does too.
What BoneZone® actually controls
BoneZone® is a modular Structural Feeding™ and chewing apparatus for dogs that secures appropriate bones, substantial foods and long-duration chews to a stable physical structure, creating controlled resistance against which the dog can grip, pull, tear, strip, gnaw, chew and manipulate the item while the owner retains greater control over:
- where the item is presented
- how freely the item can travel
- working height and orientation
- environmental contact
- retrieval and removal
- the location in which the session occurs
- supervision throughout the session
Those are real engineering and management controls, but there is an equally important set of decisions that the hardware cannot make for the owner. BoneZone® cannot determine whether a particular chew is appropriate for a dog's teeth[1], whether the dog is likely to gulp a loosened piece or whether a biologically inappropriate item should be offered in the first place.
BoneZone® also cannot eliminate microbial risk from raw animal products[2], replace supervision or guarantee that a dog's behaviour will remain unchanged from the beginning of a session to the end. That is why the next stage of our development was educational rather than mechanical.
Why we built a framework around the hardware
My professional background includes years of workplace health, safety and practical risk assessment, but that did not mean I wanted dog owners conducting a formal risk assessment every time they gave their dog something to work. Quite the opposite. The useful part of risk-management thinking can be expressed plainly: understand what you are dealing with, choose appropriately, put sensible controls in place, observe what actually happens and change the plan when conditions change.
We reduced that thinking into the Five-Stage Structural Feeding™ Educational Framework:
ASSESS → SELECT → SET → GRAPPLE → CHECK
- ASSESS the individual dog and circumstances.
- SELECT an appropriate item for that dog and session.
- SET the physical environment and apparatus.
- The dog GRAPPLES, working the item against structure through whatever appropriate combination of gripping, bracing, pulling, tearing, stripping, scraping, gnawing, licking, chewing or manipulation occurs.
- The owner CHECKS continuously and returns to assessment whenever conditions change.
The framework is intentionally simple because hardware without decision-making is incomplete.
Why this may have fallen between categories
Once we could explain the problem clearly, another question appeared: why had a small Australian startup spent years treating this as an engineering problem?
We need to be careful with the answer. We are not claiming that nobody has ever considered feeding mechanics, because extensive work exists across chewing, food acquisition, enrichment, oral health, animal behaviour and welfare. Nor are we claiming that the pet-food industry recognised a problem and deliberately ignored it. The more interesting possibility is much less dramatic:
Maybe nobody clearly owned it.
Pet-food companies quite reasonably direct enormous research and development effort towards formulation, nutrition, processing, preservation, palatability, packaging and convenience. Veterinary professionals concentrate on health, behaviourists and welfare scientists examine behaviour and experience, enrichment products create activity and choice, and product designers create bowls, toys and feeding devices.
Stable external resistance for substantial food does not fit neatly into any one of those categories. The problem is partly mechanical, partly behavioural, partly about feeding and partly about environmental management. Perhaps that is why the space remained open enough for one bloke in regional Queensland, repeatedly watching his dog work food, to decide that the thing the dog pulled against should itself become the product.
That leads to a question we would genuinely like people in those industries to answer:
Which part of the companion-animal world traditionally owns the physical architecture of feeding?
If there is a good answer, we want to hear it. If there is not, perhaps Structural Feeding™ has identified a useful space for a new conversation.
Chewing research gives the question context, not proof
A 2025 review in Frontiers in Veterinary Science examined the functional and welfare significance of chewing in domestic dogs. The authors concluded that chewing appears to contribute positively to canine welfare, while also highlighting recognised risks and significant gaps in knowledge.[3]
That research does not validate BoneZone® or prove that Structural Feeding™ improves welfare. The review establishes something more modest and useful: chewing and physical food-related behaviour are legitimate subjects of scientific and welfare interest, which is enough to justify better questions about physical presentation.
Likewise, a 2024 study found that pet dogs were willing to work for food but did not generally prefer an effortful option over identical food that was freely available.[4] This is useful evidence because the finding prevents us from turning work into a simplistic virtue. Structural Feeding™ is not about making every meal harder; Structural Feeding™ is about deliberately managing the physical relationship between a dog, an appropriate item and the structure the dog works against.
From improvised resistance to deliberate resistance
The simplest way to understand BoneZone® may be to recognise that the dog was already creating resistance and the surrounding environment was already participating. We did not invent the behaviour. We changed what the dog works against.
Loose item:
DOG → FOOD → PAWS / FLOOR / SOIL / FURNITURE / WHATEVER WORKS
Structural Feeding™:
DOG → FOOD → CONTROLLED RESISTANCE → STABLE STRUCTURE
That is the engineering proposition. Everything else, including the terminology, education, research questions and Five-Stage Framework, grew from recognising the significance of that simple mechanical change.
Pete's Perspective
For a long time, I described BoneZone® in the easiest possible way: the apparatus held a bone. That was true, but it was a poor description of why the product existed.
The breakthrough was realising that the clamp was not the point. Resistance was the point. Once I understood that, years of development suddenly made more sense. Phoenix had been showing us the problem all along: he applied force, the food moved, he found something to resist that force, and we kept engineering a better way to provide the resistance.
That is why the phrase bone holder now feels too small. We built the apparatus first, and Structural Feeding™ came later, when we finally had to explain what the apparatus had actually been enabling.
Perhaps the most interesting question now is not whether people like our terminology, but this:
If the dog pulls, what should push back?
We have built our answer.
References
-
- American Animal Hospital Association. Don't Chew On This! Published 4 April 2024. https://www.aaha.org/resources/dont-chew-on-this/
- World Small Animal Veterinary Association Global Nutrition Committee. Raw Meat Based Diets for Pets. https://wsava.org/wp-content/uploads/2021/04/Raw-Meat-Based-Diets-for-Pets_WSAVA-Global-Nutrition-Toolkit.pdf
- Quinn R, Masters S, Starling M, White PJ, Mills K, Raubenheimer D, McGreevy P. Functional significance and welfare implications of chewing in dogs (Canis familiaris). Frontiers in Veterinary Science. 2025;12:1499933. https://doi.org/10.3389/fvets.2025.1499933
- Rothkoff L, Feng L, Byosiere SE. Domestic pet dogs (Canis lupus familiaris) do not show a preference to contrafreeload, but are willing. Scientific Reports. 2024. https://www.nature.com/articles/s41598-024-51663-x
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