Breed of Dog

Characteristics of dog:
Size: Height 6 inches to 40 inches at the shoulder.
Life expectancy 9 to 15 years, some 20 years.small dogs live longer than large dog.
Common trait:
shed hair once a year.
Non-retractable claws.
42 adult teeth.
pointed canine teeth.

sweating::1.sweat glands on nose and feet. 2. Panting.
Hearing:::1. 2 times better than humans. 2. higher frequencies.
smell:::Tracking, hunting.
Classification of breeds:
Cute Breeds-----Maltese, omeranian.
Family Breeds-----Labrator Retriever, Great Dane.
Gundogs-----Pointer and Setter.
Livestock guarding Breeds------Komondor.
Scent Hound Breeds-----Blood Hound,Basset Hound, Beagle.
Sight Hound Breeds-----Afghan Hound, Greyhound.
Sporting Breeds-------Labrador Retriever, Golden Retriever.
Terrier Breeds------Airedale Terrier, Border Terrier.
Toy Breeds----Chihuahua ,Pomeranian, Maltese.
Work Breeds-----Boxer, saint Bernard, Great Dane, German Pinscher.
Livestock herding Breeds------German Shepherd.