Most breeds of dog are at most a few hundred years old, having been artificially selected for particular morphologies and behaviors by people for specific functional roles. Through this selective breeding, the dog has developed into hundreds of varied breeds, and shows more behavioral and morphological variation than any other land mammal. For example, height measured to the withers ranges from 15.2 centimetres (6.0 in) in the Chihuahua to about 76 cm (30 in) in the Irish Wolfhound; color varies from white through grays (usually called "blue") to black, and browns from light (tan) to dark ("red" or "chocolate") in a wide variation of patterns; coats can be short or long, coarse-haired to wool-like, straight, curly, or smooth. It is common for most breeds to shed this coat. COUNT 7
QSN1 The majority of dog breeds have only been around for how long? ANS1 a few hundred years QSN2 People selected dogs they wanted based on what two things? ANS2 particular morphologies and behaviors QSN3 Hundreds of different dog breeds exist because of what? ANS3 selective breeding QSN4 Height measurements in dogs go from six inches for Chihuahuas to 30 inches in what breed? ANS4 Irish Wolfhound QSN5 How old are most dog breeds? ANS5 a few hundred years old QSN6 How many different breeds are there? ANS6 hundreds QSN7 Gray color is often called what when referring to dogs? ANS7 blue