Reviewed by Dr. Becker

If your veterinarian hasn't adopted the most current guidelines for these preventatives, your dog's health may be at risk. Especially since now everyone in the veterinary community agrees there's a potential risk of this devastating result happening.

Nothing beats these types of dogs — they're patient, will brighten your day, understand you, are calm and unruffled, and can relate to you better than any other. If you're looking for a No. 1 supporter, you can't go past these remarkable creatures.

It's easy to get annoyed and angry, but far more effective to handle it this way. It'll not only help your dog become a good canine citizen, but also preserve and protect the priceless bond you share with him. Highly adaptable to other problems too, as long as you apply this 2-part rule.

How does your dog see the world — does he have a positive or negative outlook on life? These Australian researchers devised a study to find out, and discovered how dogs act when they are pessimists. How to tell if your pet is an optimist or pessimist, and what that means for their happiness.