Dolphin hunts have been carried out in Japanese town for centuries . Residents protest ` ` barbaric '' treatment of the marine mammals . Local governments of other nations have no right to ban dolphin hunts . Japanese research has found unsafe hormone levels in dolphins .
Dolphin hunts have been carried out in Japanese town for centuries . Westerners protest `` barbaric '' slaughter of the marine mammals . Local residents say other nations have no right to criticize dolphin hunts . Japanese government has found unsafe mercury levels in dolphins .