Great Dane has average obesity risk, needs balanced diet, daily walks, and weight monitoring.

Rat Terrier has average risk of obesity, needs daily walks and quality diet to maintain healthy weight.

Friendly
Devoted
Gentle
Reserved
Confident
Intelligent
Loving

Affectionate
Inquisitive
Loving
Alert
Lively

Great Danes are moderate shedders, but regular brushing can reduce shedding and maintain coat health.

Rat Terriers are heavy shedders, but regular brushing can help manage shedding and promote a healthy coat.

Choose a Great Dane if you want a top-notch watchdog. This breed takes guarding seriously, and may not require much training, though obedience or guard dog training can improve their skills.

Rat Terriers are decent watchdogs - they'll alert their owner if something seems amiss.

Germany

United States

Wolfhound, Old English Mastiff, Greyhound

Terrier, Whippet, Greyhound, Beagle

American Canine Registry
American Kennel Club
America's Pet Registry
Canadian Kennel Club
Dog Registry of America Inc.
Federation Cynologique Internationale
Kennel Club of Great Britain
North American Purebred Registry, Inc.
American Canine Association, Inc.
Australian National Kennel Council
Continental Kennel Club
National Kennel Club
New Zealand Kennel Club
United Kennel Club
Canadian Canine Registry

American Canine Registry
American Kennel Club
America's Pet Registry
Dog Registry of America Inc.
North American Purebred Registry, Inc.
American Canine Association, Inc.
Continental Kennel Club
National Kennel Club
United Kennel Club

3000 BC

1800s

Working (AKC:1887)
Guardian Dogs (UKC)

Terrier (AKC:2013 & UKC)

A Great Dane can have a litter of 7-10 puppies on average. However, it's worth noting that the size of the litters can vary greatly. Factors that can influence litter size include the health of the mother, breeding history, and genetics.

A Rat Terrier can have a litter of 15-18 puppies on average. However, it's worth noting that the size of the litters can vary greatly. Factors that can influence litter size include the health of the mother, breeding history, and genetics.

Great Danes have average adaptability to changes in lifestyle and living environments compared to other breeds.

Rat Terriers are highly adaptable and versatile, making them excellent companions for families and individuals of all lifestyles.

Great Danes typically have low vet costs due to their good health, but it's important to monitor their health and seek vet care when necessary.

While the Rat Terrier breed is generally healthy, occasional vet check-ups are still necessary to address any health concerns.

Entropion
Gastric Torsion
Cardiomyopathy
Hip Dysplasia

Patellar Luxation
Elbow Dysplasia
Hip Dysplasia

Myotonia

Demodectic Mange
Epilepsy
Legg-Calve-Perthes Disease
Color Dilution Alopecia
Teeth Issues

Cardiac
Eye
Hip
Blood
X-Rays
Physical Examination

Hip
Elbow
X-Rays
Dental Examination
Physical Examination
Skin Evaluation

Great Dane has above average social needs and thrives with interaction with humans and other dogs.

Rat Terrier has very high social needs and requires regular mental and physical stimulation, a job or purpose, and companionship.

Great Danes need only a small amount of physical activity, ideal for busy or elderly people or those with limited space.

Rat Terriers need moderate physical activity and are great for families and active individuals.

Great Dane drools quite a bit, consider a different breed if drool is unappealing.

Rat Terrier minimally drools, ideal for those who dislike drool marks on clothing.

Great Dane dogs are generally less vocal than other breeds and only bark when necessary, such as to alert their owner or communicate.

Rat Terriers bark moderately when necessary and may also bark due to certain triggers like fear, alarm, boredom, greeting, separation anxiety and compulsive barking.

Walking, Petting, Eating Snacks, Walk, Nap, Sniffing around, Play keep away, Fetch, Chasing Cats, Running, Treats, Play, Smelling, Exploring, Walks, Sniffing, Playing, Kisses, Jumping, Run, Catch treats, Tug-of-war, Wrestling, Dog Parks, Hiking, Waking, Tug of war, Fetching

Chase, Sniff, Bark, Trot, Fetch, Tug-of-war, Run, Playing, Chasing, Jumping, Running, Walking, Play, Walk, Play keep away

This breed is sensitive to its environment and best suited for patient and understanding families with a consistent routine.

This breed is sensitive and requires gentle handling and a calm home environment.

Great Danes are good with kids if socialized and trained from a young age.

Rat Terriers make excellent family pets for kids due to their gentle, protective nature and calm temperament.

Great Danes are average in their friendliness toward cats and tend to do well with them, especially if raised together.

Rat Terriers are good with cats, but early training is needed to prevent chasing behavior.

Great Danes are average in their friendliness towards other dogs, and socialization can help.

Rat Terriers are friendly and active companions, and can be good family pets, though their friendliness towards other dogs may vary.

Great Danes are averagely friendly around strangers but benefit from early socialisation.

Rat Terriers are friendly but may bark at strangers, and training is easy due to their intelligence.

Great Danes are not known for being a highly playful breed.

Rat Terriers have an average level of playfulness, enjoying playtime like most dogs but not excessively so.