The Whippet was developed in England. This breed is a member of the Greyhound family. They were originally bred to hunt with their sight, but because of their size, they were labeled as unsuitable to hunt. They then became race dogs because of their speed; this breed is very fast, and they have the capability of running speeds of 35 miles per hour. These dogs may be fast, but they are just as content with being confined to the living room of their homes; however, they are athletes so they will become bored with just laying around the house. They will need regular exercise and proper nutrition. If these dogs are cared for properly they have a lifespan of 12 to 15 years on average. Their average litter size is 4 to 8 puppies.