Dogs are domestic mammals, not natural wild animals. They were originally bred from wolves. They have been bred by humans for a long time and were the first animals to be domesticated. There are various studies that suggest that this happened between 15,000 and 100,000 years before our time. The dingo is also a dog, but many dingoes have reverted to wild animals and live independently from humans in the range where they are found.
Today some dogs are used as pets, others are used to help humans do their jobs. They are a popular pet because they are generally playful, friendly, loyal, and listen to humans. 30 million dogs in the US are registered as pets. Dogs eat vegetables and meat, in many cases, they mixed together and produced as dog food. Dogs often have jobs, including police dogs, army dogs, assistance dogs, fire dogs, messenger dogs, hunting dogs, sheepdogs, or rescue dogs.
They are sometimes referred to as “canines” from the Latin word for dog – canis. Sometimes people also use “dog” to describe other canines, such as wolves. A baby dog is called a puppy or a puppy. A dog is called a puppy until around one year of age.
Dogs are sometimes called “man’s best friend” and literally they are because they are kept as pets and are generally loyal and enjoy being with humans. Dogs like to be petted, but only when they can see the animal’s hand before petting it; you should never stroke a dog from behind.