Dog book dating
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 dog is called a puppy until it is about one year old.Man refers to humankind and not just guys (Old English). For example, there are guard dogs, hunting dogs, herding dogs, guide dogs for blind people, and police dogs.There are also dogs that are trained to smell for diseases in the human body or to find bombs or illegal drugs.Radiocarbon dating showed that the human bones were between 13.300 and 14.000 years old.Dogs are often called "man's best friend" because they fit in with human life.A mysterious skull discovered by a dog walker dates back to the late Iron Age, archaeologists have revealed.The skull, which was found in Langport in Somerset, was reported to the police and analysed.
Sniffer dogs (usually beagles) are sometimes trained for this job.
All dogs are descended from wolves, by domestication and artificial selection.
This is known because DNA genome analysis has been done to discover this.
Breeds such as the Dachshund usually live for fifteen years, Chihuahuas can reach age twenty.
The Great Dane, on the other hand has an average lifespan of six to eight years; some Great Danes have lived for ten years.