Scientific name: canis lupus familiaris
People have been keeping dogs as pets for thousands of years. Dogs can be used to herd animals like sheep, and if they are well trained they will obey commands like sit and fetch. Dogs come in a huge variety of different colours and sizes, from tiny Chihuahuas right up to huge dogs like the Great Dane. A female dog is called a bitch and a baby dog is called a puppy. Modern dogs were domesticated from wolves, and were originally kept as hunting companions.