The dog (Canis familiaris or Canis lupus familiaris) is a domesticated descendant of wolves. Also called the domestic dog, it was selectively bred during the Late Pleistocene by hunter-gatherers. Dogs and …

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.

Feb 19, 2026 · dog, (Canis lupus familiaris), domestic mammal of the family Canidae (order Carnivora). It is a subspecies of the gray wolf (Canis lupus) and is related to foxes and jackals. The dog is one of …

Find out which dog breed is the right fit for you and your home with Petfinder.

Looking for a dog for work, sport, or play? Understand the different types of dogs to find your perfect fit.

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.

Domestic dogs are mostly kept as pets, though many breeds are capable of surviving on their own, whether it’s in a forest or on city streets. A third of all households worldwide have a dog,...

Sep 27, 2025 · Some dogs are even bred specifically for their friendly dispositions and their ability to get along well with children or other animals. No matter what your lifestyle, there’s definitely a dog breed …

Find cats & dogs for adoption today! Through the Petco Foundation, we have helped over 5 million pets find new homes all across the country. Discover your next companion online and adopt in a Petco …

Dogs can differ in appearance, function, temperament and size. Some small dogs can weigh as little as 1.5 pounds, whereas some larger dogs can weigh as much as 200 pounds. Depending on the …