Another popular breed is the Bloodhound. They are very clumsy but will track anything you give them. They are able to track scents partially because of their long ears. Their ears help because they sweep the ground in front of them and help bring any scent closer to the dog’s nose. Their name comes from the ability to track a scent from blood for days. They are part of the hound group and they, of course, hunt by scent. Bloodhounds are usually around 120lbs.

Collies come in many varieties. The most popular are the Rough-Coated Collie, Smooth-Coated Collie, Bearded Collie, and the Border Collie. They come in many different colors. All collies are part of the Herding group. Most collies originated in Scotland. However, no one is really sure where the Rough Coated Collie originated from. In Scotland, they were and still are used for guarding and herding potentially dangerous livestock. 

Golden Retrievers are the second most popular dog ever. Goldens are used today as seeing eye and hearing dogs. The Golden Retriever came about in England during the late 19^th century. They are part of the Sporting group. These dogs are especially good with people and young children. So, as you can guess, Goldens are not good guard dogs.

The largest of all terriers is the Airedale. They are great guard dogs and are known for the saddle-like marking on their backs. Like all terriers, they need firm handling and lots of training. They are now used as police dogs in Germany and England. 

The Irish Wolfhound is the tallest of all dogs. I t was used in Ireland to stop the growing wolf problem there. They can weigh as much as 120lbs and can be as tall as 34in tall from there paws to the tallest part of their head. They are great with children and make excellent guard dogs. They can move surprisingly fast for a large dog.