Jim is a retired doctor and Fella is his second Muttville rescue dog. Jim was lonely when his first dog passed away, so Muttville handpicked Pretzel (now Fella), an 11-year-old terrior mix.

Older dogs, with their greying fur and sagging jowls, have a special beauty. This beauty is wonderfully captured in a series of portraits by Toronto-based photographer Pete Thorne, which will be published in a new book, entitled Old Faithful: Dogs of a Certain Age.

The top honor at the 2015 Hero Dog Awards went to a little 14-year-old dog named Harley, who had spent most of his life in a commercial dog breeding facility. Now, thanks to the efforts of the couple who adopted him, Harley has become a "spokesdog" and fundraiser for puppy mill rescue.

When Janetta Harvey adopted Susie-Belle — a Schnauzer who had spent her life as a breeder in a puppy mill, she knew that her new dog would finally get the life she deserved. What Janetta didn't realize was how much she would be inspired to change lives of other dogs like Susie-Belle.

As our dogs age, many of us may wish for a way to hold on to them forever. Since 2012, photographer Jane Sobel Klonsky has been doing that with her camera by capturing precious moments between people and their senior dogs.

When a happy 11-year-old Australian Cattle Dog mix named Danny Boy arrived at Muttville Senior Dog Rescue, little did anyone suspect the adventures that awaited or the inspiring legacy that Danny, with the help of dedicated foster parents, would leave behind for the dogs of Muttville.

Senior dogs may seem content to sleep the day away. However, while they may not be able to handle a vigorous hike like they used to, older dogs can still engage in regular activities that stimulate their body and mind. Some activities may even prove useful for helping dogs adapt as they age.

Bob Jachens is founder and director of German Shepherd Rescue of Northern California's Thulani Program. The Grey Muzzle Organization has provided grants to help support the program since it was founded in 2009. One of the worst nightmares for a...

Our recent post Keeping Your Senior Dog Active suggested training can improve the physical and mental health of senior dogs and help them adjust to age-related challenges. In this follow-up, we also recommend several articles by expert dog trainer and Grey Muzzle Advisory Board Member Mikkel Becker.

Even the healthiest senior dog can suffer some of the effects of aging, including aches, pains, and stiffness. In this post, we recommend articles by veterinary expert and Grey Muzzle Advisory Board Member Dr. Marty Becker on how to make your older dog more comfortable.

Award-winning blog Grouchy Puppy is host to San Francisco writer Sharon Castellanos's funny, poignant observations about the human-animal bond and our remarkable relationship with dogs. In recent years, it has also been an important source for insights into the joys and sorrows of loving a senior dog.

Through Project Unconditional, photographer Jane Sobel Klonsky has documented the special bond between people and their senior dogs. She now shares photos, taken during her recent visit to Lionel's Legacy in San Diego, revealing the compassion and dedication of those devoted to senior dog rescue.

After many years fostering dogs for a rescue, Diane Pierce and her husband knew that older dogs make great pets, especially for older people, but that those in shelters have a difficult time finding homes. That's when they founded Senior Dogs 4 Seniors to provide a win-win opportunity for older dogs and people.

After diet and appropriate exercise, the next most important thing you can do for your senior dog is provide veterinary checkups. Regular veterinary health exams—including dental checks, complete blood screening, and urinalysis—are an essential factor in keeping your senior pet healthy.

Dog lovers are now asking for more end-of-life services for their dogs for as long as they are able to maintain a good quality of life. However, what is a good quality of life for a dog? Dr. Alice Villalobos offers a couple guides for ensuring a dog's well-being in the final stage of life.