This Senior Mastiff's cross-country journey to love and safety proves just how far rescuers will go to change a dog’s life!

They tend to be large dogs and require time and attention. But if you're looking for a lower-energy dog, consider a mastiff. Although they're big (sometimes over 200 pounds) and could have higher ...

Unlike yaks and snow leopards, which gradually made their home at high elevation over tens of thousands of years, the mastiffs made huge adaptive strides all at once. Wang suspected the dogs had ...

Known for its massive size, thick coat, and regal appearance, the Tibetan Mastiff is often considered one of the most ...

One of the heaviest dog breeds, English Mastiffs can reach up to 31 inches (79 centimeters) at the shoulder. Another heavy breed, Neapolitan Mastiffs can stand up to 24 to 31 inches (61 to 79 ...