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Physical Traits

Body size

Canine body size is influenced by genetics, breed standards, nutrition, and overall health, varies widely among breeds and individuals due to the development of breeds for specific roles and functions.Learn More

 Curly tail

Curly tails aid dogs in balance and stability, facilitate movement in working breeds like Basenjis and Akitas, provide warmth in colder climates, and convey emotions and intentions through their position and movement, such as indicating confidence or fear.Learn More

 Ear Position

Dogs have floppy ears because neural crest cells, which differentiate into various body parts during development, are repressed in domesticated dogs, affecting their ears, skull, brain, and facial and chest fur.Learn More

 Floppy ears

Dogs have floppy ears because neural crest cells, which differentiate into various body parts during development, are repressed in domesticated dogs, affecting their ears, skull, brain, and facial and chest fur.Learn More

 Head shape

Dog breeds vary significantly in head shape, from long-headed (dolichocephalic) breeds like Afghan Hounds and Greyhounds to broad, wide-skulled (brachycephalic) breeds like Pugs and French Bulldogs.Learn More

 Hairlessness

Hairlessness is a genetic condition in dogs, particularly affecting the American Hairless Terrier, caused by a mutation in the SGK3 gene, leading to the absence of hair.Learn More

 Leg length

A dog's leg length correlates with its breed's functional role and is influenced by factors including diet, exercise, environment, and genetic predispositions promoting leg growth.Learn More

 MIPEP (Coat Length)

The gene MIPEP is part of the group of genes that can predict whether a dog has short or long hairLearn More

 Natural Bobtail (T Locus)

The T Locus determines the natural bobtail trait in dogs, leading to a shortened tail or complete absence of a tail.Learn More

 Physical Traits

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 Screw Tail (ST Locus, Bulldog and Terrier Type)

The ST Locus (ST) (Screw Tail) trait causes a dog's tail to be shortened and kinked, commonly seen in Bulldogs, French Bulldogs, and Boston Terriers. Learn More

 Shedding (SD Locus)

The SD Locus (SD) influences shedding levels in dogs through genetic variations in the MC5R and RSPO2 genes.Learn More

 ST Locus (Screw Tail, Bulldog and Terrier Type)

The ST Locus (ST) (Screw Tail) trait causes a dog's tail to be shortened and kinked, commonly seen in Bulldogs, French Bulldogs, and Boston Terriers. Learn More

 T Locus (Natural Bobtail)

The T Locus determines the natural bobtail trait in dogs, leading to a shortened tail or complete absence of a tail.Learn More