On this Wikipedia the language links are at the dog valentine cards of the page across from the article title. They were originally bred from wolves.

They have been bred by humans for a long time and were the first animals ever to be domesticated. Today, some dogs are used as pets, and others are used to help humans do their work. They are popular pets because they are usually playful, friendly, loyal, and listen to humans. Thirty million dogs in the United States are registered as pets. They are sometimes called “canines” from the Latin word for dog – canis. Sometimes people also use “dog” to describe other canids, such as wolves. A baby dog is called a pup or puppy.

A dog is called a puppy until it is about one year old. Dogs are sometimes referred to as “man’s best friend” because they are kept as domestic pets, are usually loyal, and like being around humans. August 26 is National Dog Day. While March 26 is National Puppy Day. Dogs have four legs and make a “bark,” “woof,” or “arf” sound.

Dogs often chase cats, and most dogs will fetch a ball or stick. Dogs can smell and hear better than humans but cannot see well in color because they are color blind. Due to the anatomy of the eye, dogs can see better in dim light than humans. They also have a wider field of vision. Like wolves, wild dogs travel in groups called packs. Packs of dogs are ordered by rank, and dogs with low rank will submit to other dogs with a higher rank. The highest ranked dog is called the alpha male.