After being missing for five years, Penny, a chihuahua mix originally from Mississippi, was reunited with her owners after being discovered in Florida.

Animal services were able to identify Penny and contact her owners thanks to her microchip.

ABC News' Danny New breaks down an unusual rescue which led a lost dog back to the arms of its owner.

A dog playing around an oceanside bluff slipped and fell onto a ledge about 40 feet below the top of the cliff. David Muir shares the incredible efforts from the rescuer who brought him to safety.

In New York, marriage licenses allow for two official witnesses so Wally the golden retriever gave his paw of approval and even got his own wedding cake at the ceremony.

ABC News' Danny New talks to Abdul Raheem, a man who never grew up with cats, but has helped find homes for hundreds of them.

Bella, a wiener dog in Tampa, is going viral over her heartwarming, expressive smile. Her owner calls it "the funniest thing."

Roman, an 8-month-old mini cream dachshund, is going viral for mastering the art of the touchdown celebration while cheering on the Philadelphia Eagles.

ABC News' Danny New introduces us to Bradford, a 13-year-old Westie mix who grooves on his human mother's piano playing.

Sir Darius Brown is the CEO of Beaux and Paws, a company which donates a bowtie to an animal shelter for every piece of neckwear that's purchased.

A dog has gone viral on social media for loving his professional pianist mom's jazz music.

The cat, a staple at a Virginia Lowe’s store, was found after a two-week search after she wandered onto a delivery vehicle, taking a trip to a North Carolina distribution center some 85 miles away.

A real-life Lassie named Eeyore came to the rescue of an elderly woman who fell while out on a walk and the dog’s search for help was caught on camera.

Edmon Lighthall threw a "welcome home" party for his dog Pete after reuniting with him after 10 years apart.

A Chicago man threw a "welcome home" party for his dog after reuniting with him after 10 years apart.

ABC News' Danny New speaks to one man in Kansas who takes to the open road on his motorcycle and brings his dogs along for the ride.

During a fire in Aurora, Illinois, Oakley the dog led a police officer through the house to the kitchen for his leash before the two eventually made it out of the house safely.

Famous dog behaviorist Cesar Millan demonstrates a new AI-powered smart collar that combines GPS tracking with traditional training methods to keep dogs safe.

How AI technology can help you train your pet

Guide dog organizations across the country are putting out a call to puppy lovers, saying there is a shortage of volunteers to raise the pups that will one day train to be guide dogs.

When two-year-old Frankie Derise went to school for the first time, his family didn't realize how hard it would be for their dog, Beau who waited patiently for his return.

Some students can check off their furry friend on their pack list as some colleges allow pets in dormitories. Veterinarian Dr. Adam Christman breaks down the pros and cons.

Pudge has been picking up millions of fans online as the unofficial “locker room cat” for Bowling Green State University’s football team.

Shop dog toys, treats and custom gifts for dog owners.

Suki, a certified gluten-detection dog, is a lifesaver for Kendra Williams, her owner who has celiac disease.

Emmy the Labrador rings a specially made doorbell to get the attention of her neighbors, a retired couple living in California.

A Labrador in Southern California has gone viral on TikTok after her owner trained her to ring a special doorbell so she can visit their neighbors.

The 1-year old played fetch with the family labrador where he accidentally threw the ball backwards in the viral TikTok video.

An animal shelter in Pennsylvania has created a "tiny home village" to house adoptable dogs, giving them private suites with amenities such as heating and air conditioning.

The Nicholson family said they drove several hours to reunite with their dog, Bella, whom they lost six years ago.

Bowie the golden retriever is blessed with a “human-like” smile, which his owners say is "right on the edge of adorable and a little uncanny."

A Denmark zoo is asking the public to donate their pets -- particularly chickens, rabbits and guinea pigs -- so that they can feed them to the zoo’s predators.

Faith the pitbull is retiring from the annual event after being diagnosed with a neurological disorder that affects balance.

The shocking results of a DNA test give an unusual second chance to a woman and her “soul dog.” 

A stray kitten that became an internet sensation after boarding a New York City subway train last week has been adopted by one of her fellow commuters.

Staffers at a Kentucky animal shelter thought all the dogs were safe in their kennels, but Chase escaped by somehow climbing up a door.

"The Ultimutts," a group of rescue pets including deaf dogs and cats, perform tricks and stunts and appear in Hollywood films.

Record numbers of people giving up their pets is pushing some animal shelters to the brink.

Dash's owners didn't train their dog to throw toys at them, and initially thought the behavior was normal.

ABC News’ Morgan Norwood talks with content creator Madeline Bennett about her viral videos featuring Oliver and Oakley, her two pet squirrel monkeys.

The dog, named Blue, was found in a public bathroom at Cameron Park in Waco, Texas, which is almost 300 miles away from the family, according to the Pet Circle Regional Animal Center.

A sheriff's deputy has been fired after leaving a police dog in a hot car, which ultimately led to the canine's death, officials said.

A Bay Area family unknowingly adopted their late dog Rufus’s biological father, Ziggy, after spotting his lookalike on a senior dog rescue page. A DNA test confirmed the incredible match.

The FDA has approved a long-acting drug to protect dogs against fleas and ticks. The drug, Bravecto Quantum, is given by injection and must be prescribed by a licensed veterinarian.

FDA approves Bravecto Quantum, the first injectable flea and tick treatment offering dogs up to 12 months of protection.

Animal rescue groups are taking in displaced pets amid deadly floods in Texas, relocating them and keeping them safe until they can be reunited with their owners.

Marc Peralta, chief program officer for Best Friends Animal Society, discusses emergency airlift operations to save pets and wildlife in Texas.

PETA is suing the American Kennel Club over the breeding standards for certain dogs, contending the influential club is promoting unhealthy physical features.

At a Virginia adoption event, a stray dog named Sienna alerted a man to an oncoming seizure and later found her forever home with a family in need.

Monty lost the use of legs when he was six, but he’s not letting anything slow him down.