A domesticated mammal known for its loyalty, companionship, and diverse breeds. Dogs are often referred to as "man's best friend" due to their long history of being human companions. They come in various sizes, shapes, and colors, with traits ranging from playful and energetic to calm and protective. Dogs possess keen senses, including a heightened sense of smell and hearing, making them valuable in roles such as search and rescue, therapy, and assistance work. They are highly social animals that form strong bonds with their owners and are known for their ability to provide emotional support and unconditional love.