When choosing a pet, choose a breed that fits your lifestyle and preferences. Both dogs and cats vary widely in their temperaments and their needs.
Every day animal shelters must euthanize healthy animals turned in because their unhappy owners did not research and anticipate certain issues. For instance, a mild mannered person should not select a large dog from a breed that tends to dominate the owner. Or a family with toddlers should choose a breed less likely to snap at the children. Those who live in an apartment with no yard should pick an animal suited to smaller confines.
Size also affects personality. Small dogs tend to be active and have a high demand for affection. Large dogs tend to be quieter and more patient with children. Very small and very large dogs are prone to genetic problems. Large dogs require more space and more food - affecting your budget and lifestyle.
Check out the breed list and see what type of pet is best for you and your family.