There's about a three feet difference in size between the world's tallest and smallest dogs, according to Guinness World ...

Parting is such sweet sorrow. These five wonderful breeds are prone to health issues that significantly shorten their lives.

One might think that two dogs that are at the extremes of size would ignore each other, or worse, but these two pooches ...

Reggie, a 7-year-old Great Dane from Idaho, and Pearl, a 4-year-old Chihuahua from Florida, put their (size) differences ...

Reginald is a 7-year-old Great Dane from Idaho who is the size of a small horse. Pearl is a 4-year-old chihuahua from Florida ...

When both dogs are walking, Pearl, a 9.14-centimeter (3.6-inch) tall chihuahua, barely reaches the top of Reggie’s paw, such ...

The Drummond family may favor medium dog breeds and large dog breeds these days, but Ree will always have a special place in her heart for small dog breeds. That's because her very first dog was ...

Guinness World Records organized a meeting between the world's tallest and shortest dogs in April in celebration of the brand's 70th anniversary ...

“I think she has no idea she is a small dog. Normally she’s really playful with bigger dogs, she just wants to be around [them].” Pearl, who is half the size of Reggie’s head, playfully ...