There’s so much variation between dogs that it can sometimes be hard to believe that some breeds – particularly the smallest and largest dog breeds – are part of the same species. And now, showing ...

The world of pets is full of surprises, from record-breaking cats with the longest tails to parrots that can mimic hundreds ...

In a world where everything seems to keep getting supersized, man's best friend keeps getting smaller. First there was Beyonce, the tiny pup who fit in a tablespoon at her birth in March and at two ...

We are famously a nation of dog lovers, but what's a person to do if they're living in a city? Or an apartment without a garden? Or busy juggling the demands of work and parenting with limited time ...

Like most breeds, their exact heritage is hazy, but Chihuahuas are likely to have been established in Mexico centuries ago, where their ancestors were deemed to have sacred powers in Aztec and Toltec ...

Though she may be little, this pup has a big personality. — -- Meet Thumbelina, a 1.54-pound Chihuahua puppy who now has the title of being the smallest dog ever adopted from the Wisconsin Humane ...

Her tiny nails painted to match her name, Pearl the Chihuahua peered confidently into a camera lens, preening in a custom-cut, Coco Chanel pullover, as if she understood that being the Guinness World ...