The most common symptoms of heartworms disease are coughing, lethargy, lack of exercise, tolerance and weight loss. Left untreated, these will eventually progress to organ failure, congestive heart disease and premature death of the animal.
A puppy for Christmas is a great gift. But unfortunately, many "Christmas Puppies" soon end up at the local shelter or rescue organization not long after the holidays. One of the most common reasons for this is that the new owners were not equipped to train a puppy and quickly realize that puppies do not come with an on / off switch.