New research led by scientists at the American Museum of Natural History and the Smithsonian's National Museum of Natural ...

Chihuahuas, rat terriers and miniature poodles are muscling in on strength contests long dominated by big dogs. It takes high ...

New studies of canine genetics shed light on the diversity of dogs and our longstanding, still-evolving relationship to them.

In September, a TikTok video from creator Monica Matute went viral after she struggled to communicate with her foster pup, ...

According to The Dog People, Chihuahuas are one of the most vocal breeds around. "Chihuahuas may be small, but their bark is mighty. This toy breed is fiercely loyal and love to use their voice to ...

Nacho the Chihuahua appeared shy and untrained and wouldn't respond to his foster mom's spoken commands, until she made an ...

This Chihuahua puppy is absolutely hilarious, turning a robot vacuum into her own personal chauffeur that takes her around the house without lifting a paw.

There’s a new top dog in town: The chihuahua is Washington’s most popular dog breed, according to U.S. News & World Report. The chihuahua — which makes up 4% of dogs in the country — is also the most ...

Kelly Sites jokes that Charley will “always be a grumpy old man" but he's grown so much since being given a second chance.

Lindy the Chihuahua has already won several prizes in her single year of competing in dog pageants in the U.K. Lindy the glam Chihuahua regularly wins canine pageants decked out in an ultra-glam ...

An illustration of the small dog found at a Roman villa in Oxfordshire, England DigVentures / Earth Trust Archaeologists excavating a Roman villa in England have discovered the remains of a toy-sized ...