Polar bears depend on sea ice.
Administratively , Cuba is divided into 15 provinces and a special municipality that 's not included in any province .. Administratively. Administrative division. Cuba. Cuba. municipality. municipality. The last modification was approved in August 2010 -LRB- by the Cuban National Assembly -RRB- , splitting Havana province into two new provinces  : Artemisa -LRB- which incorporates the three eastern municipalities of the neighbour Pinar del Rio -RRB- and Mayabeque .. Artemisa. Artemisa Province. Pinar del Rio. Pinar del Rio. Mayabeque. Mayabeque Province. The new provinces started functioning from January 1 , 2011 .. Havana City Province -LRB- Ciudad de La Habana -RRB- recovered its original name  : La Habana -LRB- Havana in English -RRB- .. La Habana. La Habana. Ciudad de La Habana. Ciudad de La Habana. English. English language