Prey drive is the inclination of a carnivore to find, pursue, and capture prey; this instinct can be refined for industrial purposes such as herding dog livestock.
In different breeds of dogs, certain steps of these have been amplified or reduced by human-controlled selective breeding for various purposes. The "search" aspect of the prey drive is used in Detection dog such as and . The "eye-stalk" is for . The "chase" is seen in sighthounds such as Greyhounds and , while the "grab-bite" and "kill-bite" are for the training of . In most dogs, prey drive can occur without extrinsic reinforcement.
are sometimes expected to chase prey and bring it back to the human hunter, but not bite or damage it. , such as the Staffordshire Bull Terrier, have an amplified grab-bite as they were originally bred to bull-baiting (restrain bulls by hanging onto their noses), but never needed to find or stalk the prey.
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