Could this be the oldest pooch in the world? Meet Tara, age 25, making her 175 in human years. Her owner is Burt Ward, who played Robin in the 1960s hit TV series "Batman." Ward has spent the past 22 years caring for dogs. He and his wife, Tracy, live with 50 canines at their home in Norco, California all of which were rescued. Tara is Ward's favorite and he credits her long life to a dog food he makes himself called Gentle Giants. It is low-fat, non-greasy canine chow he sells commercially.