Baleen is often called whalebone, but that name also can refer to the normal bones of whales, which have often been used as a material, especially as a cheaper substitute for ivory in carving.he whale then pushes the water out, and animals such as krill are filtered by the baleen and remain as food source for the whale. Baleen is similar to bristles and is made of keratin, the same substance found in human fingernails and hair.
Marco Polo (game) The game Marco Polo /ËmÉËrkoÊ ËpoÊloÊ/ is a form of tag played in a swimming pool. The origin of the game is unknown.
Polo is a sport that is played outdoors on a field as big as 10 football fields. The reason for this is that polo players play the game while riding on horses. This sport takes a lot of skill and requires players to control their horses with one hand and strike at the ball with the other. Players must also take care that they don't crash their horses in to each other when galloping at a high speed.