Exercise Needs

Some breeds do fine with a slow evening stroll around the block. Others need daily, vigorous exercise, especially those that were originally bred for physically demanding jobs, like herding or hunting.

Without enough exercise, these breeds may put on weight and vent their pent-up energy in ways you don't like, such as barking, chewing, and digging. Breeds that need a lot of exercise are good for outdoorsy, active people, or those interested in training their dog to compete in a high-energy dog sport, such as agility.

• See Dogs Who Don't Need Tons of Exercise