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.
Last but not the least onto my list of biggest dog breeds in the world is none other than a Tibetian Mastiff. They grow to a height of 24 to 26 inches, weighing about 85 to 140 pounds. They usually have a life span of about 10 to 14 years. Tibetan Mastiffs are highly intelligent and independent thinkers.