The evidence library

Hall, E.J. et al. (2020). Dogs Don't Die Just in Hot Cars — Exertional Heat-Related Illness Is a Greater Threat to UK Dogs. Animals (MDPI).

In over a thousand UK heatstroke cases, exercise — not hot cars — was the leading trigger. The midday walk is the risk most owners underestimate.

Applied in: Keeping Your Dog Cool

Hall, E.J. et al. (2022). Risk Factors for Severe and Fatal Heat-Related Illness in UK Dogs — a VetCompass Study. Veterinary Sciences (MDPI).

Flat-faced, overweight, thick-coated, very young and very old dogs carry the highest heatstroke risk — panting physiology explains why.

Applied in: Keeping Your Dog Cool

Glickman, L.T. et al. (2000). Non-dietary risk factors for gastric dilatation-volvulus in large and giant breed dogs. JAVMA.

The landmark Purdue study: fast eating raised bloat risk in large breeds — and raised food bowls were associated with more risk, not less.

Applied in: Does a Slow Feeder Actually Help?

Burrows, R. (2019). Are dogs that eat quickly more likely to develop gastric dilatation (±volvulus)? Veterinary Evidence.

A structured review of the eating-speed evidence: the association holds best in large breeds; slowing a gulper is one of the few modifiable factors.

Applied in: Does a Slow Feeder Actually Help?

Purina Institute. Canine Gastric Dilatation-Volvulus (GDV) — clinical overview.

Clinical background on GDV: what it is, why it's an emergency, and the management picture our feeding advice sits inside.

Applied in: Does a Slow Feeder Actually Help?

Grainger, J. et al. (2021). Dog Pulling on the Leash: Effects of Restraint by a Neck Collar vs. a Chest Harness. Frontiers in Veterinary Science.

Pulling into a neck collar concentrates real pressure on the throat; a chest harness spreads the same force across the body.

Applied in: Why Your Dog Pulls on the Leash

Carter, A. et al. (2025). A Review of Collars, Harnesses, and Head Collars for Walking Dogs. Animals (MDPI).

A current equipment review: fit and force distribution matter more than category labels — and no tool replaces training.

Applied in: Why Your Dog Pulls on the Leash

China, L., Mills, D.S. & Cooper, J.J. (2020). Efficacy of Dog Training With and Without Remote Electronic Collars vs. Positive Reinforcement. Frontiers in Veterinary Science.

In a 63-dog controlled trial, reward-based trainers beat e-collar trainers at recall — more first-command responses, fewer repeated cues.

Applied in: Recall Training: Why Trainers Reach for a Long Line

Wood, J.M., Tyrrell, R.A. & Carberry, T. (2005). Limitations in Drivers' Ability to Recognize Pedestrians at Night. Human Factors 47(3).

Drivers recognised dark-clad pedestrians as little as a third of the time; retroreflective markings on moving joints pushed recognition above 90% — physics that transfers directly to dogs.

Applied in: Walking Your Dog in the Dark

Duranton, C. & Horowitz, A. (2019). Let me sniff! Nosework induces positive judgement bias in pet dogs. Applied Animal Behaviour Science.

Two weeks of nosework made dogs measurably more optimistic in judgement-bias tests than the same time spent on heelwork — sniffing is welfare, not a party trick.

Applied in: The Bored-Dog Problem

Herron, M. et al. (2023). The Use of Environmental Enrichment during an Acute Stressor in Kennelled Shelter Dogs.

Food-based enrichment measurably reduced stress behaviour in kennelled dogs during an acute stressor — evidence that 'a job to do' calms.

Applied in: The Bored-Dog Problem

Sargisson, R.J. (2014). Canine separation anxiety: strategies for treatment and management. Veterinary Medicine: Research and Reports.

The treatment evidence for separation anxiety: graduated desensitisation (sometimes with medication) works; punishment and pure 'toys' do not.

Applied in: Home Alone: Bored Dog or Separation Anxiety?

VCA Animal Hospitals. Separation Anxiety in Dogs.

How clinicians distinguish panic from boredom: exit-focused damage, vocalising after departure, soiling only when alone.

Applied in: Home Alone: Bored Dog or Separation Anxiety?

Anderson, K.L. et al. (2018). Prevalence, duration and risk factors for appendicular osteoarthritis in a UK dog population. Scientific Reports 8:5641.

From 455,000+ primary-care records: roughly 200,000 UK dogs affected by osteoarthritis annually, living about a tenth of their lifespan with it — common and underdiagnosed.

Applied in: Senior Dogs at Home

American Animal Hospital Association (2023). AAHA Senior Care Guidelines for Dogs and Cats.

The profession's senior-care checklist puts home modification on the treatment list: non-slip flooring, ramps, orthopedic bedding, mobility harnesses.

Applied in: Senior Dogs at Home

VCA Animal Hospitals. Teeth, Teething and Chewing in Puppies.

Veterinary dentists' hardness rule — don't let a dog chew anything that won't bend; bones, antlers and hard nylon crack teeth.

Applied in: Puppy Teething: The Hardness Rule

American Kennel Club. Puppy Teething Timeline.

28 baby teeth out, 42 adult teeth in, finished around six months — teething is a season with an end date.

Applied in: Puppy Teething: The Hardness Rule

Madson, C. (CBCC-KA, CPDT-KA), Preventive Vet. How to Set Up a Long-Term Puppy Confinement Area.

The certified-behaviourist blueprint for a puppy zone: sleep, water, potty and chew stations — and why management beats correction.

Applied in: The Puppy Zone

American Animal Hospital Association (AAHA). Water Safety Tips for Pets.

Any dog can drown — fatigue and disorientation don't check the breed. Includes the delayed-symptom warning for inhaled water.

Applied in: Dogs and Water

American Kennel Club. How to Find the Right Life Jacket for Your Dog.

Which builds swim poorly (flat-faced, very lean), and how to fit flotation: chest girth, two-finger straps, shallow-water float test.

Applied in: Dogs and Water

Center for Pet Safety. Harness Crash Test Research & Certification.

Independent child-seat-style crash testing: most pet harnesses failed; only a handful earned certification. 'Crash-tested' on a label means little without it.

Applied in: Driving With Your Dog

Consumer Reports. How to Keep Your Pets Safe in a Car.

Loose pets are a documented driver distraction; restraint on every trip is the baseline.

Applied in: Driving With Your Dog

Kealy, R.D. et al. (2002). Effects of diet restriction on life span and age-related changes in dogs. JAVMA 220(9):1315–20.

The landmark 14-year paired study: Labradors kept lean lived a median 1.8 years longer — about 15% more lifespan — than well-fed litter-mates, and aged more slowly.

Applied in: Is My Dog Overweight?

Raffan, E. et al. (2016). A Deletion in the Canine POMC Gene Is Associated with Weight and Appetite in Obesity-Prone Labrador Retriever Dogs. Cell Metabolism.

A gene deletion carried by ~1 in 4 Labradors and flat-coats measurably raises food motivation and body weight — some dogs really are hungrier by biology.

Applied in: Is My Dog Overweight?

American Animal Hospital Association (2021). Nutrition and Weight Management Guidelines for Dogs and Cats.

The profession's framework for scoring body condition and managing weight — the basis for the hands-on rib-and-waist check owners can do at home.

Applied in: Is My Dog Overweight?

WSAVA Global Nutrition Committee. Body Condition Score charts.

The standardised 9-point body condition scale used worldwide — why a hands-on score beats a target weight across breeds.

Applied in: Is My Dog Overweight?

American Kennel Club. How to Protect Dog Paws From Hot Pavement.

At 86°F air, asphalt can reach 135°F — enough to damage skin in about a minute. The hand test and walk-timing advice come straight from this guidance.

Applied in: Too Hot to Walk? The Pavement Test

American Veterinary Medical Association. Warm Weather Pet Safety.

The veterinary baseline for hot weather: avoid hot surfaces like asphalt that can burn paws, and watch for the broader heat risks of summer.

Applied in: Too Hot to Walk? The Pavement Test

Blackwell, E.J., Bradshaw, J.W.S. & Casey, R.A. (2013). Fear responses to noises in domestic dogs: Prevalence, risk factors and co-occurrence with other fear related behaviour. Applied Animal Behaviour Science.

Almost half of dogs showed a fear sign to noises, yet fewer than a third of owners sought help — noise fear is both common and badly under-treated.

Applied in: Fireworks and Thunder

Riemer, S. (2023). Therapy and Prevention of Noise Fears in Dogs — A Review of the Current Evidence for Practitioners. Frontiers in Veterinary Science.

Desensitisation with sound recordings improves noise fear; anxiolytic medication has good evidence for severe cases, while pheromones/herbals aren't enough alone.

Applied in: Fireworks and Thunder

American Kennel Club. Dogs and Fireworks: How to Calm Your Dog.

Practical set-up: a safe den away from windows, curtains closed and sound masked, walked before dark — and comforting a scared dog does not reinforce fear.

Applied in: Fireworks and Thunder

American Veterinary Society of Animal Behavior (AVSAB). Position Statement on Puppy Socialization.

The profession's stance: more dogs under three are lost to behaviour problems than to infectious disease, so socialisation should begin before vaccinations finish — done safely.

Applied in: The Puppy Socialisation Window

Vasconcellos, A.S. et al. (2022). Optimising Puppy Socialisation — Short- and Long-Term Effects of a Training Programme during the Early Socialisation Period. Animals (MDPI).

A structured programme made puppies bolder with novel objects and faster to recover from a startle — but the gains faded by six months without follow-up, so socialisation must continue past 14 weeks.

Applied in: The Puppy Socialisation Window

O'Neill, D.G. et al. (2021). Frequency and predisposing factors for canine otitis externa in the UK — a primary veterinary care epidemiological view. Canine Medicine and Genetics.

Across 22,000+ dogs, one-year ear-infection prevalence was 7.30% (~1 in 14). Ear carriage was a top risk factor — Basset Hounds carried nearly six times the odds of crossbreds.

Applied in: Swimmer's Ear in Dogs

VCA Animal Hospitals. Ear Infections in Dogs (Otitis Externa).

Why the warm, dark, damp ear canal breeds yeast and bacteria — and why trapped water after swimming or bathing is the modifiable trigger.

Applied in: Swimmer's Ear in Dogs

American Kennel Club. Dog Ear Infections: Symptoms, Causes, Treatment, and Prevention.

The signs that mean 'vet, not home remedy' (head-shaking, odour, discharge) and the after-swim drying routine that prevents most infections.

Applied in: Swimmer's Ear in Dogs

VCA Animal Hospitals. Grooming and Coat Care for Your Dog.

The veterinary baseline for bathing ('when dirty or smelly'), brushing-first, and dog-pH shampoo.

Applied in: How Often Should You Actually Bathe a Dog?

American Kennel Club. How Often Should You Bathe Your Dog?

Coat-type schedules, and why overbathing strips the oils a healthy coat depends on.

Applied in: How Often Should You Actually Bathe a Dog?

PetMD (veterinary-reviewed). Nail Trimming and Paw Care for Dogs.

Why overgrown nails change gait and posture, and the low-stress trimming progression.

Applied in: Long Nails Hurt More Than You Think

American Kennel Club. Dog Shedding: What to Expect and How to Manage It.

Shedding is driven by photoperiod (daylight), not temperature — which is why 'shedding season' follows the calendar.

Applied in: Deshedding Done Right