Though the average specimen in captivity might live 25 or 35 years, an old koi named Hanako, from Mino province in Japan, has been shown to be over 215 years old based on analysis of her scales, and other 100+ year old fish are known from the same pond. Koi, like wild carp, can grow to 36 or more under perfect conditions.
The gold and silver medals weigh 412 grams (0.9 pounds) and the bronze medal weighs 357 grams (0.78 pounds). They are the biggest and heaviest summer Olympic medals ever made.
Olympic medal. An Olympic medal is awarded to successful competitors at one of the Olympic Games. There are three classes of medal: gold, awarded to the winner; silver, awarded to the 1st runner-up; and bronze, awarded to the second runner-up. The granting of awards is laid out in detail in the Olympic protocols. Medal designs have varied considerably since the first Olympic Games in 1896, particularly in size and weight. A standard obverse design of the medals for the Summer Olympic Games began in 1928 and re