The pool legth depends on the level of players, and it ranges from 25 to 35 meters.
Water polo originated as a form of rugby played in the rivers of England and Scotland. Click on the 'History of Water Polo' link on this page to read an article concerning the history of water polo.
Those are two different brand names of water polo ball. Actually a kiefer water polo ball is different then a mikasa because it is heavier and comes in number sizes. A mikasa just comes in men and women
In 2013, 17 horses drowned in international water polo competition. This was the highest equine death toll since 1972, when 28 horses died in a single match (the so-called "death derby": Ecuador vs Trinidad and Tobago on July 23, 1972). It is very hard for horses to breathe underwater, even when they are given snorkels.
Water polo and water volleyball are sports played with a ball in a pool.
don't know which polo but my guess is 1) in the grass w/horses the other is 2) in the water w/a water polo ball :D