For those born in the month of March, the official gemstone is the Aquamarine. It can range in color from a very pale shade, almost colorless, which is also the most valuable, to a most sought-after deep-blue aqua.
English Mastiff is the largest dog breed in the world by considering the mass. This breed has an average weight of 68-110 kg and shoulder height of 27-33 inches. On 26th September 1981 the Guinness book of world records recognized an old English Mastiff named Zorba as the heaviest and longest dog in the world.
Here are some of the largest dogs on earth and the most popular giant dog breeds around. 1  of 10. Beanstock Images / Getty Images One might argue that this huge and majestic creature more closely resembles a small horse than a dog. 2  of 10. Relaxed English mastiff. 3  of 10. Leonberger dog with tongue hanging out. 4  of 10. Close up of Bull Mastiff dog.