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.
The 10 Biggest Dog Breeds. 1  Tibetan Mastiff: This handsome dog is known for the lionlike mane around his head. He was bred to guard temples. The biggest Tibetan Mastiff is said to have been around 280 pounds, but these days they average 180 pounds.
The St. Bernard is one of biggest dog breeds, with adult males measuring approximately 90 centimeters (35 inches) and weighing up to 120 kilograms (264 pounds). They have been known to be very dependable, and especially strong as they are some of the strongest dogs in the world.