What are the seven major groups of dogs? How do they differ?

?? The sporting group was developed to assist the hunter in the pursuit of game.
?? The hound group is of two basic types: one type hunts by scent and the other by sight.
?? The terrier group is divided into two subgroups: the long-legged, larger breeds and the short-legged, small
breeds. Many of the terriers were developed to go into coal mines to hunt mice and rats or to pursue game
into their tunnels and underground dens. The word terrier is derived from the Latin word terra, which
means "earth."
?? The working dog group was developed to labor or work for humans. They may serve as guard dogs, sled
dogs, police dogs, rescue dogs, and messenger dogs.
?? The herding dog group was developed to aid the livestock herder with various species of livestock.
?? The toy dog group is so named because of size; some of these dogs are as small as one and a half pounds.
These dogs are very alert and popular as house pets and companions.
?? The nonsporting group consists of miscellaneous breeds with a wide variety of sizes and characteristics.
Basically, these dogs are used as companion dogs.