The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of the gray wolf. Also called the domestic dog, it was selectively bred from a population of wolves during the …

Jan 6, 2026 · A dog is a domestic mammal of the family Canidae (order Carnivora). It is a subspecies of the gray wolf and is related to foxes and jackals. The dog is one of the two most …

Search for dogs, cats, and other available pets for adoption near you.

As humans became more sophisticated, so did their dogs. Eventually, there emerged specific breeds of dogs, custom-bred to suit the breeders’ local needs and circumstances.

May 30, 2025 · Explore over 200+ types of dogs, detailing their size, temperament, and purpose to help you find the perfect canine companion for your lifestyle.

All dogs descend from a species of wolf, but not the gray wolf (Canis lupus), like many people assume. In fact, DNA evidence suggests that the now-extinct wolf ancestor to modern dogs …

Get to know how today’s domestic dogs evolved from wolves, how to protect your dogs during a disaster, and the important roles dogs play in modern society.

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Nov 26, 2025 · Dogs have been "man's best friend" for thousands of years, during which humans have orchestrated an explosion of dog breeds, from tiny Chihuahuas to gigantic Great Danes.

Find specific details on this topic and related topics from the MSD Vet Manual.