Most older dogs that make their way to rescue groups and shelters were once family pets. Many are already socialized, house trained, know how to walk on a leash and even know basic commands.

If sleep is important to you, an older pet is a great choice, because unlike puppies, they won't whine at night and need to be taken out less often.

Despite common perceptions, most pets are not surrendered because of behavior issues. Pets are often surrendered because of changes in a family's financial situation or because a family member develops allergies.

Cats that are all grown up make fantastic pets. They are still curious and playful, but will likely sleep while you are out and are less likely to pounce on your toes while you are trying to sleep like a lively kitten might. Not to mention they probably already know about the litter box.

Many older pets are already spayed or neutered, one less thing to worry about.

Older pets also are given less time to be adopted in over extended shelters. So not only can you feel good about your new family member, but you can also feel good that you gave them a second chance.