Dog

Dogs are carnivorous animals; their size can range from that of a cat to that of a sheep, and their pelts can have a variety of colors and patterns. They are presented in the books as dumb, mindless animals, incapable of coherent thoughts or actions.

Relation to Clan cats
Dogs are notoriously hostile to cats, and they will always chase and try to catch them. Usually, the cats can get away from a dog, many times because the owner of the dog turns up to take it away. Confrontation with dogs is the main theme of A Dangerous Path.

Relation to Twolegs
Dogs are kept by Twolegs as pets or guards; and are rarely found in the wild. They are usually seen in the company of Twolegs, who are walking them on a leash.

Bluestar's Prophecy
A dog attacks a patrol led by Bluefur, but the cats manage to fight it off.

Firestar's Quest
Dogs chase the questing Firestar and Sandstorm several times; the cats manage to get away.

Rising Storm
Fireheart, Sandstorm and Ravenpaw are chased by a dog in Twolegplace while looking for Cloudpaw; the cats manage to get away.

A Dangerous Path
A pack of ferocious guard dogs (referred to as The Pack) are loose in the Forest, living in ThunderClan territory, near Snakerocks. Tigerstar plans to lure them to the ThunderClan camp in order to wipe the cats out. Eventually, the cats get rid of the dogs by driving the pack over the gorge, where the Pack Leader falls to his death, and the rest of the pack disbands, leaving the forest.

Midnight
The six questing cats are chased by a dog, but are saved by Purdy.

Dawn
The journeying Clans encounter a dog in the vicinity of Barley's barn, but fight it off. Next day, another dog threatens a hunting patrol, but it is fought off as well.

The Sight
Dogs attack WindClan, but the warriors fight them off, helped by ThunderClan.

Dark River
A dog chases Hollypaw into WindClan territory, and she is caught by a WindClan patrol.

Sunrise
Dogs attack the patrol returning from the sun-drown place, and they are saved by Jingo, a loner. The same loner recounts a story when the loners were holed up in an abandoned building, threatened by feral dogs.

The Fourth Apprentice
Dogs attack the patrol that was looking for water, but the cats climb a tree, and the dogs are called away by their Twolegs. Later, the group encounters other dogs, but they manage to hide.

Other Occurences
It is mentioned that a black-and-white terrier named Pip lives near the Horseplace, but it never makes an appearance in the books.