A dog is a domesticated mammal that is part of the canine family. It is known for its loyalty, companionship, and ability to be trained. Dogs are often kept as pets and serve various roles such as assistance animals, working dogs, and search and rescue dogs. They come in different breeds, sizes, and temperaments, each with its own unique characteristics. Dogs are known for their wagging tails, barking, and their ability to form strong bonds with their human owners.
