These dogs hold the respective Guinness World Record for the tallest and shortest living dogs in the world. See the cute ...

A couple in Nevada says their dog is so big, they think he may be part horse. At just 2 years old, Rocko stands at 40 inches from paw to shoulder and is about 7 feet tall when on his hind legs. He ...

What's 38 inches tall, 228 pounds and eats 110 pounds of food a month? This is no riddle. This is a true story of a big dog in Lackawanna County, Pennsylvania, whose owners are trying to get him into ...

What happens when one of the smallest dog breeds meets one of the largest? One heck of a height differential! Two canine cuties, a Great Dane and a Chihuahua, recently got together for the very first ...

Next to a few insects, dogs are one of the most diverse animal species on Earth. Their wide range of physical traits enables them to excel in various roles, from the hunters needed to survive in the ...

BEDFORD, Texas -- Saddle up! Guinness World Records has crowned the "world's tallest living dog." Zeus, an American Great Dane from Bedford, Texas stands 3 feet 5 inches tall at 2-years-old. His owner ...

Zeus, a Great Dane, was a "gentle giant," his owner said. Two-year-old Great Dane Zeus sits in a love seat at Kevin and Denise Doorlag's home in Ostego, Mich., Sept. 9, 2010. Jonathon ...

SPARKS, Nev. -- A couple in Nevada says their dog is so big, they think he may be part horse. At just 2 years old, Rocko stands at 40 inches from paw to shoulder and is about 7 feet tall when on his ...

A couple in Nevada thinks their dog may be part horse. Rocko stands at 40 inches from paw to shoulder and is about 7-feet tall when on his hind legs. Owners say the 160-pound Great Dane thinks he's a ...

A couple in Nevada thinks their dog may be part horse. Rocko stands at 40 inches from paw to shoulder and is about 7-feet tall when on his hind legs. Owners say the 160-pound Great Dane thinks he's a ...

NEVADA -- A couple in Nevada thinks their dog may be part horse. Rocko stands at 40 inches from paw to shoulder and is about 7-feet tall when on his hind legs. Owners say the 160-pound Great Dane ...