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.
Marco Polo emerges as being curious and tolerant, and devoted to Kublai Khan and the dynasty that he served for two decades. The book is Polo's account of his travels to China, which he calls Cathay (north China) and Manji (south China). The Polo party left Venice in 1271.