Columbia Encyclopedia

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guide dog

(Encyclopedia)guide dog, a dog trained to lead a blind person. The first school for training such dogs was established by the German government after World War I for the benefit of blinded veterans. Schools now exi...

seeing-eye dog

(Encyclopedia)seeing-eye dog: see guide dog.

dog

(Encyclopedia)CE5 General anatomy of a dog dog, carnivorous, domesticated wolf (Canis lupus familiaris) of the family Canidae, to which the jackal, fox, and tanuki also belong. The family Canidae is sometimes r...

working dog

(Encyclopedia)working dog, classification used by breeders and kennel clubs to designate dogs raised by humans to herd cattle and sheep, as draft animals, as message dispatchers in wartime, in police and rescue wor...

Saint Bernard, breed of dog

(Encyclopedia)Saint Bernard, breed of massive working dog developed in Switzerland in the 18th cent. and perfected by British breeders during the 19th cent. It stands from 25 to 29 in. (64–74 cm) high at the shou...

dog days

(Encyclopedia)dog days, name for the most sultry period of summer, from about July 3 to Aug. 11. Named in early times by observers in countries bordering the Mediterranean, the period was reckoned as extending from...

dog racing

(Encyclopedia)dog racing, trials of speed between dogs. Now contested on oval tracks, the sport developed from the ancient practice of coursing, in which specially trained dogs chase game animals in the open field....

Dog Star

(Encyclopedia)Dog Star: see Sirius.

coach dog

(Encyclopedia)coach dog: see Dalmatian.

police dog

(Encyclopedia)police dog: see German shepherd. ...